set out 出发,动身;开始做……
(教材P15)Setting out on a long journey by sea with unskilled sailors would be dangerous especially if there were no modern navigational instruments.没有熟练的船员就开始海上旅行是非常危险的,尤其是如果没有现代的航海仪器。
They set out on the last stage of their journey.
他们开始了旅行的最后一程。
set off 出发,动身;引起
set about 开始;着手(后面跟动名词)
set out 动身;开始,着手(后面跟不定式)
set up 建立;确立
set down 写下;放下
He set about learning Chinese at ten.
他在十岁时开始学中文。
The burning gas was easy to set off an explosion.
燃烧的煤气容易引起爆炸。
【温馨提示】 表示“开始做……”时,set out后面跟不定式,set about后面跟动名词。