26. or so 等等　 sooner or later 遲早

25. We opposed the plan because of the cost.　 反對該計劃因為…

be the opposite of　　 …對立面　　　　 Black is the opposite of white.

be opposite to　　 與…相對的　　 Black is opposite to white.

The house is opposite the road.　 (on the other side of)

24. have the opportunity to do/ for/of doing　 有去做…機會　

23. What's your opinion of the book ? = How do you like the book ?=What do you think of the book?　 have a good/poor opinion of 對…印象好/壞 in one's opinion = to one's mind 據(jù)…看來

22. operate the machine 開動機器　　 operate on sb　 給某人動手術(shù)　　

perform an operation on sb　 come into operation = come into effect = come into force 開始生效

21. The door won't open.門不能開。　 open an account 開個賬戶　 leave the door open 讓門開著　 declare sth open　 宣布…開始 be open to the public　 對公共開放opening speech 開幕詞

20. only　　 僅僅　　 Only he saw the tiger.　 He only saw the tiger.　　 He saw only the tiger.

Only in this way can you do it well.　　　　 not only… but also…　　 too…to…

only too...to = very　　 I am only too glad to meet you.

19. in one/same direction同一方向one-sided 片面的 one-way 單方面one by one 一個接一個

18. I have been here once.(一次) I once lived here.(曾經(jīng))　 once again 再來一次

at once 馬上, 同時 I can't do two things at once.　　　 once more 再一次 (once again)

once a day 每天一次　　　 once in a while 偶爾

17. have nothing on 沒穿…　 go straight on/ahead　 筆直朝前　　 on the table

There is a new film on on channel 8. 上演 ,　

play a joke on sb 開…一個玩笑　　 in time 及時　　　 on time 準(zhǔn)時　　

be based on　　　 on business 因公 on holiday 度假　 on the way to 在途中

on foot　 on tiptoe 悄悄地　　 on hire　

on purpose = by design　　 正好相反　　　 on the other hand 另一方面　

on doing 一…就…　　 On getting off the plane, I recognized him.