非常坚硬的

"Tagua" palm trees grow mainly in tropical areas in South America. They grow very slowly and take about 15 years to bear their fibrous fruit and another 3 8 years for the fruit to become ripe. The locals collect these fruit to dry in the sun. After a few months, when the fruit are completely dry, they become a white, tough, ivory-like mass. This material can be used in making buttons, ornaments, chessman, musical instruments…etc. Therefore the fruit is also known as "Ivory Nut".

集中在南美热带生长的「Tagua」椰子树，生长速度非常慢，需时15年才会结出纤维质的果实，再等3-8年果实成熟，当地人就会收集起来晾晒，待数月后果实完全烘乾，变成媲美象牙的白色坚硬物质，可制作钮扣、饰品、棋子、乐器等，因而亦有「象牙果」之称。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

Upper Arm --Ideally the same length as the shoulderblade and at right angles to the latter, strong of bone and hard ofmuscle, lying close to the ribs, with elbows close to the body, yetcapable of free movement.

肩胛骨。长、宽、向后倾斜，稳固地安在丰满的胸腔之上，马肩隆非常靠近，肌肉坚硬而柔韧。

The natural Slates such as Slideproof Slate, Avianize Slate, Mosaic and Cuture Stone, the main products of our company mined from quarries formed through millions of years, are hard in quality and bright in color. Because of their unique layer structures, they have very strong flexural strength. Their wear-resistant and corrosion-resistant properties make them ideal building materials used for both interior and exterior.

主要产品是火烧板、亚光板、马赛克、文化石等天然板岩，开采于经过数亿万年形成的石材矿床，品质坚硬，色泽鲜明，其特殊的层状结果决定了它的抗折强度很高，尤其良好的耐磨、耐腐蚀的天然石材特征，使其成为一种地面、屋面、室内外墙面非常理想的建筑材料。

Sarah Scott , manging director of Smythson, the upmarket stationer,has had to think long and hard about what it takes to succeed in America and she takes it very seriously indeed.

萨拉·斯科特， Smythson的manging的主任， upmarket文具商，必须认为长，并且坚硬关于什么它采取在美国成功和她非常严重的确采取它

The excessive Hardness of the Wood, and having no other Way, made me a long while upon this Machine, for I work'd it effectually by little and little into the Form of a Shovel or Spade, the Handle exactly shap'd like ours in England, only that the broad Part having no Iron shod upon it at Bottom, it would not last me so long, however it serv'd well enough for the uses which I had occasion to put it to; but never was a Shovel, I believe, made after that Fashion, or so long a making.

这种木料确实非常坚硬，可是我别无他法，所以，我化了好大的功夫才做成一把铲子。我慢慢把木块削成铲子的形状，铲柄完全像英国铲子一样，只是铲头没有包上铁，所以没有正式的铁铲那么耐用。不过，必要时用一下也还能勉强对付。我想，世界上没有一把铲子是做成这个样子的，也决不会化这么长的时间才做成一把铲子。

Because defends external national the invasion, must need the quite firm fortification or the castle, therefore the ancient babylonian can not but use crops' as well as bushes and so on plant's the straw stalk makes the fuel, makes certain shape the soil to burn the quite solid brick bat to do for the main building material, uses for the building big city wall and the fortress, and displayed the acme, therefore only then north two river basin edge mountainous area, only then appeared certain scale stone system construction, but compared the ancient Egypt's stone system creation on "big Wu Jianxiao" Wu, because the soil burn brick or at that time burns the technical limit, basicIs unable to compare with the hard rock, although the brick uses, extremely nimble and may the rapid construction broad in scale building or the urban cluster, but radically is unable to achieve actually Shi Zhi constructs that kind of altitude as well as in time eternal degree, therefore is called by the historian the world ancient times one of seven wonders of the world "the airborne garden" has become on the ruins historical miracle, now only then also in continues in the decency the remnant brick to break the tile to relate once magnificently with glory, long-time, all vestiges could even more be not much left.

由于防御外来民族的侵扰，必须需要比较坚固的防御工事或者城堡，因此古巴比伦人不得不用农作物以及茅草等等植物的秸秆做燃料，把制成一定形状的泥土烧制成比较结实的砖块来做为主要的建筑材料，用来建筑高大的城墙和堡垒，并发挥到了极致，因此只有在两河流域北部的边缘山区，才出现了一定规模的石制建筑，但相比古埃及的石制创作就&大巫见小巫&了，由于泥土烧制的砖或受当时烧制技术的限制，根本无法与坚硬的岩石相比，虽然砖使用起来，非常灵活并可以迅速的建造规模宏大的建筑物或者城市群，但却根本无法达到石制建筑的那种高度以及在时光中的永恒程度，于是被史学家称为世界古代七大奇迹之一的&空中花园&就成了废墟上的历史奇迹了，如今只有还在继续风化中的残砖断瓦在诉说着曾经的辉煌与荣耀，更长久一点，一切遗迹就会更加的所剩无几了。

Ealthy liver tissue is very soft, while a liver with fibrosis is firmer, and a liver with cirrhosis is almost rock-hard,?

健康肝脏组织是非常柔软的，而纤维化的肝脏是比较硬的，而硬化后的肝脏像岩石一样坚硬。

Means the parent directory, so this command means to execute "toolchain.sh," which is in the current directory.

代表父目录，所以这个命令就是执行当前目录下的"toolchain.sh"。

Yes,In fact,I'm on our city ream.

是的。事实上我是我们市队的。