1.cleaning up 清潔
例句:This room needs cleaning up.
這房間需要打掃。
2.nuclear power 核武器
例句:Japan has announced plans for a sharp rise in its nuclear power generation.
日本宣布了大幅增加核能發電的計劃。
3.air conditioner 空調
例句:The air conditioner of my room is not working.
我房間的空調無法正常運行了。
4.block off 阻擋
例句:They had blocked off the fireplaces to stop draughts.
他們已經封住了壁爐,以阻擋通風。