重点讲解：
1. what if (用于疑问句句首，尤用于询问不希望看到的事发生时的结果)如果…怎么办；
What if this doesn't work out?
如果这个不行怎么办？
2. thanks to 幸亏；归因于；
It is thanks to this committee that many new sponsors have come forward.
又有许多赞助商找上门来，这要归功于这个委员会y7vko+foJECu!isH2,R+。
3. function as 发挥功能；起作用；行使职责；
On weekdays, one third of the room functions as workspace.
在工作日，房间的1/3用作办公区域rv6EgqT_0Trf6LE,。
4. take up 接受；
Breeding or genetic modification could increase the efficiency with which animals and plants take up nitrogen.
育种或基因改造可以增加动植物吸收氮的效率@Hlk_3DkJFihy#I%)4。

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