1. 同居：shack up with 同居 | shack up 同居 | shack 小室

2. 过夜：53. 抓阄draw straws | 54. 过夜 shack up | 55. 为自己辩护 shelter oneself

3. 同居,同住：33settle up结账;了结某事 | 35shack up同居,同住 | 36shake down摇落;适应新环境

4. 同居、同住：1. shack up:同居、同住 | 2. budget:便宜的,合算的 | 3. trunk road:主干道

1. (与…)同居
If you say that someone has shacked up with someone else or that two people have shacked up together, you disapprove of the fact that they have started living together as lovers.

e.g. ...the deserters who had shacked up with local women...
与当地妇女同居的逃兵
e.g. The Government was keen for people to get married rather than shack up...
政府非常希望人们能正常结婚而不是未婚同居。

verb

1. share living quarters
usually said of people who are not married and live together as a couple

Synonym: cohabitlive together