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91．hunt for尋找

What do you hurt for?

90．hang up掛上電話；掛起來

After she finished her conversation，she hung up．

Lester hung up his hat and coat．

89．set foot in／on踏上，走進

Never set foot on our property again．

88．focus on聚集于，集中于

Focus your attention on your work．

87．fix up安裝

They are busy fixing up the lights．

86．feed on以……為主食

It feeds on a certain kind of fish．

feed…on用……喂養

What do you feed your dogs on?

85．drop out(of)輟學；中途退出

If you don’t like the idea, drop out．

84．dream of／about夢想；想到

I never dream of its hurting you．

83．clean up收拾；整理

You should always clean up after a picnic．

82．account for說明原因解釋

He couldn’t account for his absence from sch001．