Each are playing a role in the exploration of our biology.它们对我们的生物研究起着巨大作用

play a role起作用；扮演角色

In a way they played a vanguard role.

在某种意义上说，他们起了先锋的作用。

She played a minor role in the opera.

她在那出歌剧里扮演了一个小角色。

He wants to find out whether they use up more energy digesting cooked or raw meat.他想弄清消化生食和熟食哪种更消耗能量

find out发现；找出来；揭发

We must find out the customs of other countries, so that they will not think us ill mannered.

我们必须知道别的国家的习俗，免得他们会认为我们是没有礼貌的。

Find out what the conditions of the contract are.

弄清楚合同的条件是什么。

use up用完；耗尽

Don't use up all the soap. Leave me some to wash with.

不要把肥皂用尽，留一些给我洗。