back adverb (RETURN)
Looking at her old photographs brought back (= made her remember) a lot of memories. 看着以前的照片，她想起了许多往事。
I was woken by a thunderstorm, and I couldn't get back to sleep (= could not sleep again). 我被雷暴惊醒后，再也无法入睡。
A2 in return作为回报
A2 in reply作为回答
- After the trip, it was nice getting back to a few home comforts.
- She thinks he'll come back, but she's deceiving herself.
- That's enough, Peter. Give those toys back, please.
- I think I locked the door but I'll go back and check just to make sure.
- When I look back I can see where we went wrong.
- Will you put the books back when you've finished with them?
back adverb (FURTHER AWAY)
backnoun [ C ]uk /bæk/ us /bæk/
back noun [ C ] (FURTHEST PART)
back to front C2 UK US backwards
back noun [ C ] (BODY PART)
I have a bad back. 我背疼。
back noun [ C ] (SPORT)
back verb (SUPPORT)
- This theory needs to be backed up with solid empirical evidence.
- The troops were backed by tanks, artillery, and other heavy armour.
- It is hoped that all sides will back the peace plan.
- A poll indicated that 77 percent of Americans backed the president's plan, with only 6 percent in opposition.
- Although Paris backs the U.N. demands, it has made it clear it will not take part in any new military action.
back verb (MOVE AWAY)
back verb (COVER)
backadjective [ before noun ]uk /bæk/ us /bæk/
back adjective [ before noun ] (POSITION)
› at or near the back of something后面的，后部的，背部的