Each are playing a role in the exploration of our biology.它們對我們的生物研究起著巨大作用

play a role起作用；扮演角色

In a way they played a vanguard role.

在某種意義上說，他們起了先鋒的作用。

She played a minor role in the opera.

她在那出歌劇里扮演了一個(gè)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種更消耗能量

find out發(fā)現(xiàn)；找出來；揭發(fā)

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

我們必須知道別的國家的習(xí)俗，免得他們會(huì)認(rèn)為我們是沒有禮貌的。

Find out what the conditions of the contract are.

弄清楚合同的條件是什么。

use up用完；耗盡

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

不要把肥皂用盡，留一些給我洗。