1·Environmentalists fret about the petroleum needed to make it.
环保人士对生产所需的石油感到担忧。
2·If it's out of your control, why fret about it?
如果某件事你控制不了，那为什么还要为它而烦恼呢？
3·I fret about the past, the present, the future.
过去、现在和将来更让我烦躁不堪。
4·That experience had made me fret about this meeting.
那次经历让我对这次会面多少有些不安。
5·Urban planners may fret about traffic and pollution.
城市规划者可能会为拥护的交通和环境的污染而犯愁。
6·French voters are right to fret about euro-economics.
法国选民对欧盟经济的忧虑是理所当然的。
7·And the family no longer fret about the safety of their food.
她的家人再也不用担心食品的安全问题了。
8·Investors now fret about the solvency of bigger countries.
投资者现在还在担忧大国的偿付能力。
9·Don't take on, and fret about it too much! it can't be helped.
别难过，别为这事太烦恼啦，没救了。
10·Yet the Chinese continue to fret about the Needham question.
然而，中国人仍然在继续思考李·约瑟难题。