弛张

The indoor exercises, formerly intermittently practised, subsequently abandoned, prescribed in Eugen Sandow's Physical Strength and How to Obtain It which, designed particularly for commercial men engaged in sedentary occupations, were to be made with mental concentration in front of a mirror so as to bring into play the various families of muscles and produce successively a pleasant rigidity, a more pleasant relaxation and the most pleasant repristination of juvenile agility.

141室内健身操。尤今。桑道所著《体力与健身术》中规定了如何操练。以前，他时断时续地练过，后来干脆放弃了。这种健身操是特地为坐着工作的商人所编排的，必须照着镜子聚精会神地操练，活动一下身上各个部位的筋肉，依次一张一弛地做令人心旷神怡的运动，以便恢复能给人带来莫大愉悦的青春活力。

Strain and relaxation, a unity of opposites, cover the overall process of playing the piano from reading the music score to practicing, and finally to playing the piano without reference to the music score.

张&与&弛这一即对立又统一的矛盾贯穿于钢琴演奏的识谱、练习、熟练弹奏到在舞台上完整地背谱演奏这一过程中。

It is black suit likewise, henry can be built a grace and callous two kinds of disparate atmosphere, in a piece of one relax, those who reveal is the natural strike with the palm of the hand that feels to vogue in henry temperament accusing; is the jeans likewise, should match with different pattern, color

同样是黑色的西服，亨利可以营造出优雅和冷酷两种截然不同的氛围，一张一弛中，彰显的是亨利气质中对于时尚感觉的天然掌控；同样都是牛仔裤，当配以不同款式、颜色的

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。