1.afraid of 害怕
In many places in the world children are afraid of the unknown, of the unreal.
在世界上许多地方,孩子们害怕的是那些未知的、不真实的东西 。
2.close to接近
We like to live in flats because we can be close to our friends.
我们喜爱住在公寓因为我们能够接近我们的朋友 。
3.combine with结合
Because cholesterol can't travel alone through the bloodstream, it has to combine with certain proteins.
胆固醇因为不能单独在血液中移动,所以必须和特定的蛋白质结合 。
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