By eighteen fifteen, five thousand chronometers were in use on ships sailing the world's oceans.

VOA: special.2010.07.14

Were it not better done as others use, To sport with Amaryllis in the shade, ? Or with the tangles of Neaera's hair?

为何不像他人一样，在树荫下玩弄喇叭花，或是尼哀若的发卷？

耶鲁公开课 - 弥尔顿课程节选

And you'll use "If I were" to talk about yourself in the present in relationship to the past.

你可以用“If I were”来比较现在的你和过去的你。

If I were 课堂 - SpeakingMax英语口语达人

American investors and bankers were afraid their money would drop in value because of the use of silver.

VOA: special.2010.06.24

Sometimes there were interesting little problems that emerged and one of those has to do with the use of chariots in warfare.

偶尔会有一些有趣的小问题出现,这往往和战争时使用的二轮战车相关

耶鲁公开课 - 古希腊历史简介课程节选

But it was often difficult. To protect their towns,the settlers often had to employ people who were expert in the use of firearms.

VOA: special.2010.03.10

Majority of alphas transmitted, that means, when I use the term transmitted that means passing through in the direction that they were originally traveling, transmitted and some deflected through small angles.

阿尔法粒子大部分穿过去了，当我用穿透这个词,是说按照原来的方向,穿透过去,包括有些小角度的偏离的穿透。

麻省理工公开课 - 固态化学导论课程节选

They were afraid their money would drop in value, as more silver money was put into use.

VOA: special.2010.06.17

Several lawmen in the Old West had learned to use their weapons when they were criminals.

VOA: special.2010.03.10

"The timeline that we've talked about is actually,in a sense that, if I were to use the surge in Iraq, look where we are right now, sort of apply the same kind of timeline to Afghanistan, as best we can tell, and we think that's reasonable, in terms of having the impact, and then being able to thin our forces out and bring them back".

VOA: standard.2009.11.04