对比转折: but, however, though, although, yet, nevertheless, on the other hand... 相似关系: like, as, similar to, in the same way, or... 在词下画三角△ 3.表示因果关系 as, b...
1 . begin to do sth 开始做某事。如: Soon it began to rain. 不久天就开始下雨了。 He sat down at the desk and began to write. 他在桌子前坐下就开始写了起来。 2 . began doing sth 开始做某事。如: He began doing this job last year. 他去年开始做这工作。 H...
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