Definition
A situation in which something bad or dangerous almost happened.
指差一點發生不好的事情。
He almost missed his flight; it was a close thing.
他差點錯過了他的航班；真是千鈞一髮。
The car swerved at the last moment, or it would have hit the pedestrian. It was a close thing.
汽車在最後一刻急轉彎，否則就會撞到行人。真是千鈞一髮。
I crammed for the exam at the last minute, but I still passed. It was a close thing.
我在最後一刻臨時抱佛腳，但還是通過了考試。真是千鈞一髮。