经济学人下载: 回收:塑料公路 (1)

1.end up doing 以...而告终
Policymakers will probably end up doing this.
政策制定者最终很可能会这样做。
2.worsen 恶化
The security forces had to intervene to prevent the situation worsening.
那些安全部队不得不干预以阻止形势变得更糟。
3.is derived from 源自；从...中产生
Anna's strength is derived from her parents and her sisters
安娜的坚强源自于她的父母和姐姐们。
4.consist of 构成
The lungs consist of millions of tiny air sacs.
肺由数百万个小气囊组成。