1. hang back
[例句]I saw him step forward momentarily but then hang back, nervously massaging his hands.
2. hang on
[例句]Can you hang on for a minute?
3. hang up
[例句]Mum hung up the phone.
4. have on
[例句]It's a pretty hat you have on.
5. hold back
[例句]The administration had several reasons for holding back.
6. hold on
[例句]His right arm was extended up beside his head, still holding on to a coffee cup.
7. hurry up
[例句]Franklin told Howe to hurry up and take his bath; otherwise, they'd miss their train.
8. keep down
[例句]The prime aim is to keep inflation down.
9. keep off
[例句]I managed to stick to the diet and keep off sweet foods.
10. keep up
[例句]She shook her head and started to walk on. He kept up with her.
11. let down
[例句]But then to be let down like that, oh it's so unfair!
12. let in
[例句]We opened the windows and let in the glorious evening air.
13. let off
[例句]The boys were letting off fireworks.
14. let out
[例句]It lets sunlight in but doesn't let heat out.
15. line up
[例句]The senior leaders lined up behind him in orderly rows.
16. look out
[例句]I should look out if I were you!
17. look on
[例句]I look on the matter as most unusual.
18. look in
[例句]I looked in on Louisa. She was sleeping.
19. make out
[例句]I could just make out a tall, pale, shadowy figure tramping through the undergrowth.
20. mix up
[例句]People often mix me up with other actors.