1.take place 发生

Why and how can it take place?

这件事为什么会发生，它又是如何发生的呢？

2.marked by 标志

Daily life was marked by farming, sheep raising and wool production.

耕作、牧羊，生产羊毛就是他们日常生活的标志W@[;N*O5!vxm.F81!rp。

3.in the presence of 在有……的情况下

Litmus paper turns red in the presence of an acid.

石蕊试纸遇酸会变红ek0374Bk&b0J+.HH*cMP。

4.to that end 为了某个目的

To that end, it has set up a joint venture with Samsung of South Korea to develop and produce Li-ion batteries for automotive use.

为了达到这一目标，博世与韩国三星成立了合资公司来开发并生产汽车用锂电池1]HF,Inq(kE0uHf。