tie off的用法和樣例：
例句
用作及物動詞 (vt.)
- The tie on the cystic duct may slip off.
在膽囊管上的結扎可能滑脫。 - I saw a number of amputation stumps from which long ligatures dangled, waiting to ripen in pus to drop off.
我看見許多截肢端外面露出長的結扎線，等待化膿后再脫落。
詞匯搭配
- play off a tie 平局后重賽以決勝負...
