我在四月份就联系过张淳，大约十天前，我再次联系了他。

I contacted Zhang Chun in April and then again about ten days ago.

youdao

伊娃拽过一张椅子，在她丈夫身边坐下。

Eva pulled over a chair and sat beside her husband.

《柯林斯英汉双解大词典》

但我怕你迷路，给过你一张地图！

But I gave you a map so you wouldn't get lost!

《牛津词典》

Well this third picture you can't probably see too much about but you probably recognize what it is, right?

第三张图可能你们没见过了,但你们能认出这是什么,对吧

耶鲁公开课 - 生物医学工程探索课程节选

I mentioned last time that there was this list in your book.

上次我说过你们书里面有这张表。

麻省理工公开课 - 化学原理课程节选

You do that by expressing the genes in the mice in the way that I described on the last slide and it's shown in a little bit more detail on this slide.

按照我上张幻灯片讲过的方法,在小鼠中表达外源基因,这张幻灯片中对此有更详细的表述

耶鲁公开课 - 生物医学工程探索课程节选