| 例句 |
phrasal verb We'll have to double up on books; there aren't enough to go around. 因为书不够人手一册，我们只好两人合用了。 They only have one room left: you'll have to double up with Peter. 他们只剩下一个房间，你只好与彼得合住了。 Jo doubled up with laughter. 乔笑弯了腰。 I was doubled over with pain. 我痛得直不起身子。 |