下降了...

What is known is that as man age, their ability to repair faulty DNA in sperm cell decreases.

目前所知道的就是，随着男性年龄的增长，他们修复精液细胞中错误 DNA 的能力下降了。

This is a improved figure over the sprig forecast issued i April 2009 that predicted a decrease of -14.1%.

这是一个较完善的数字预测春季2009年4月的预测下降了14.1%发出的。

The third quarter of this year in Shanghai and Shenzhen stock turnover ratio also fell, Central近四成access.

今年在上海和深圳股票成交量比第三季度也下降了，中央近四成访问。

Yes...A 35% drop in our bank's share price on wall street .

是。。。我们的银行的股票价格在华尔街下降了35 ％，。

The number of occupied substandard nonmetro units declined 79 percent, compared with 69 percent in metro areas.

有人居住的不符合标准的非城市住房的数量下降了79%，相比于城市地区的69%。

Takings at the pier have dropped off this season .

这个季节，码头上的收入下降了。

Karen Tandy, however, said the number of adults, including young adults, who use illegal drugs has dropped.

可是Karen Tandy说使用违禁药品的成人数量已经下降了。

I think we did well in the first half but the tempo dropped a lot in the second.

我认为在上半场我们做的很好，但在下半场，场上节奏下降了许多。

After ultra high pressure treatment, limonene concentration was decreased greatly while myrcene and α-pinene concentrations were not changed significantly and the concentration of limonene was decreased by 75% after high pressure treatment of 500 MPa for 15 min,α-terpineol and carvone concentrations were increased significantly. The aldehydes concentrations were retained well. The ester concentrations were changed under high pressure treatment, but generally their concentrations were not changed remarkably.

通过定量检测分析发现：超高压处理对橙汁中的柠檬烯成分影响很显著，经500 MPa的压力处理15 min后其含量下降了75%，而月桂烯和α-蒎烯受高压影响较小；α-松油醇、香芹酮含量经高压处理后迅速增加；醛类特征香气成分基本不受高压影响；酯类成分在高压下会发生变化，但总体变化不显著。

Electronics shops say that Tet new-year holiday sales were down by as much as 50% compared with last year.

电子产品商店表示Tet在今年新年假期的销量比去年同期下降了50%。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。