查询词典 smogs

Killer smogs don't happen very often, fortunately.

幸好，这种烟雾杀人事件并不是经常发生的。

Although these smogs were not as deadly as London's, New York City has the worst air pollution problem in the United States.

本句翻译：虽然这些烟雾令人致死的程度没有伦敦烟雾那样厉害，但是纽约市的空气污染问题在全美国是最严重的。

Killer smogs don't happen very often, fortunately.

有幸的是烟雾杀手不经常出现。

Killer smogs don't happen very often, fortunately.

幸好致人死命的烟雾不常出现。

In all the killer smogs

在各种致人死命的烟雾中

Killer smogs don't happen very often,fortunately.

幸亏致人死命的烟雾不常出现。

Although these smogs were not as deadly as London's, New York City has the worst air pollution problem in the United States.

虽然这些烟雾令人致死的程度没有伦敦烟雾那样厉害。

In the chapter 2, the theoretic knowledge about the photosensitive resin and the grinding tools was firstly introduced.

第二章阐述了光固化树脂结合剂磨具的相关理论研究。

Do not use the program's indenting or margin-setting features; these will be added during typesetting.

不要使用缩排，页面边缘设置之类的选项，偶看不大懂。