a long, narrow open hole that is dug into the ground, usually at the side of a road or field, used especially for supplying or removing water or for dividing land

to get rid of something or someone that is no longer wanted

The getaway car had been ditched a couple of miles away from the scene of the robbery. 逃离现场用的车辆被丢弃在距抢劫地两英里以外的地方。

Did you know that Sarah ditched (= ended her relationship with) her boyfriend last week? 萨拉上个星期把她男朋友给甩了，你知道吗？

to land an aircraft in water in an emergency