经济学人下载:能源短缺 电能如何储存?(上)

例句:A new warden took over the prison.
一位新的监狱长接管了这所监狱。

2.in turn 轮流；依次

例句:The girls took it in turn to wipe down the tables after meals.
女孩子们饭后轮流擦桌子

3.at the same time 同时

例句:I was afraid of her, but at the same time I really liked her.
我害怕她，但同时也确实喜欢她。

4.made a bet 打赌

例句:We made a bet on the outcome of the next election.
我们就下次选举的结果打了赌。