重点讲解:
1. be known as 称为;叫做;
The drug is commonly known as Ecstasy.
这种药通常称作摇头丸 。
2. come from 来自;始于;
Try to buy wood that you know has come from a sustainable source.
尽量购买来自可持续发展林的木材 。
3. compared to 与…相比;和…比起来;
Compared to people living only a few generations ago, we have greater opportunities to have a good time.
比起上几辈人,我们有更多机会享受生活 。
4. attach to 缚上;系上;贴上;
We attach labels to things before we file them away.
存档前,我们先贴上标签 。
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