威胁的

However, in the 1960s, it was discovered that DDT was preventing many fish-eating birds from reproducing which was a huge threat to biodiversity. Pesticide use has increased 50-fold since 1950, and 2.5 million tons of industrial pesticides are now used each year.

然而，在90世纪60年代，人们发现 DDT 是预防了对大量生物有许多威胁的许多食鱼型鸟类再繁殖。1950年以来，农药使用量增加了50倍，工业上每年利用2.5万吨农药。

He snatched the poker from between the bars, and made a half-drunken, half-threatening motion with it as he saw her.

他看见她时，便从炉栅之间抓起拨火棒来，做出一个半是酒醉、半是威胁的动作。

Until we get it, the headwinds facing the developed world will grow stronger.

直到我们达成这项目标，面临多方面威胁的发达国家将会愈发强大。

Inspections of squatter villages continued to be made to identify dwellings which are especially vulnerable to landslips during the heavy rainfall.

土力工程处继续视察寮屋区，以识别在暴雨期间特别容易受到山泥倾泻威胁的寮屋。

They have dynamic players like Cozza, Vigiani and Mesto who are dangerous on the fast counter-attack.

他们拥有像科扎，维吉亚尼和梅斯托这些在快速反击中很有威胁的冲击型球员。

The north of the country, terrorised by the rebel Lord's Resistance Army, has been a blood-spattered mess for two decades—and still awaits a real peace.

遭受反叛军&上帝抵抗军&威胁的北部地区在过去20年中已经变成了一个流血成河之地。

On the bench Nicholas Yennaris was included in the second-string for the first time while Roarie Deacon, Luke Freeman and Rhys Murphy added an attacking flavour to the bench.

2分钟后，兰道尔进入到禁区边缘，传球给弗里曼，但是这位替补射门高出了球门横梁，这是阿森纳最后一次有威胁的射门。

Scientists and authorities are monitoring the situation and evacuations have been undertaken for all threatened areas.

科学家和当局正监察有关情况，并疏散了所有威胁的地区进行。

Results: Adverse reactions occurred in 128 out of 6 258 cases, characterized by mild and moderate fever without potential lifethreatening adverse reactions.

结果：接种6 258人次中，共发生不良反应128例，主要以低热和中等热为主，未见潜在生命威胁的不良反应。

What Are The Strengths, Weaknesses, Opportunities And Threats Of Search Engine Optimisation?

什麼是优势，弱点，机会和威胁的搜索引擎优化？

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。