Backsight
n. 后视, 表尺缺口
🗣️ 情景例句
it's going to be too late when I do remember.
等我想起来时已经太晚了。
A man knows his companion in a long journey and a little inn.
路遥知马力，日久见人心。
Do you want to make it earlier or later?
要提早还是延迟呢？