double up
US /ˈdʌb.əl ʌp/
UK /ˈdʌb.əl ʌp/

短语动词
1.
合住, 共用
to share a room or bed, especially when there is not enough space for everyone to have their own
示例:
•
We had to double up in a small hotel room during our trip.
旅行期间,我们不得不在一间小旅馆房间里挤在一起。
•
Due to limited space, some students will have to double up in the dorms.
由于空间有限,一些学生将不得不在宿舍里合住。
在 Lingoland 学习这个单词