◇ look for意为“寻找”,但没有search for注意力集中,地点名词不可直接跟在look后作宾语,其前需加介词。如: What are you looking for on the playground﹖ 你在操场上找什么呢? ◆ set up;set out;set off;set about ◇ set up 建立政权、组织、国家等。如: The government has set up a working party to look into the problem of drug abuse. 政府已成立工作组调查毒品泛滥问题。 ◇ set out 出发;动身。如: They set out for Beijing yesterday.他们昨天动身去北京。(此种情况下out可用off替换)。 ◇ set out to do sth.开始做某事。如: She set out to break the world land speed record.她决心打破陆上速度的世界纪录。 ◇ set off使(地雷、炸弹)等爆炸。如: Do be careful with those fireworks; the slightest spark could set them off. 要格外小心这些烟火,稍有火星就会引起爆炸。
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