leave something behind 留下某物
be left behind 被抛在后面
leave the past behind 告别过去
leave a legacy behind 留下遗产
leave them behind 丢下他们
A: Did you check your bags before getting off?
A：下车前你检查过包了吗？
B: Oh no! I think I left my passport behind!
B：噢不！我想我把护照落在后面了！
1) 遗忘或丢下物品
2) 落后于他人或群体
3) 留下某种痕迹或印象
4) 时代或技术淘汰
5) 遗弃某人
1. 遗留，丢下
2. 落后，被甩在后面
verb
1. To forget to take something with you when you go somewhere.
2. To fail to keep up with others in a race or competition.
3. To cause something to continue to exist after you are gone.
Synonym: abandon, forget, drop