break off
US
UK break off vi phrasal: (become detached)
SC 脱落 tuō luò
SC 断开 tuō luò ，duàn kāi
TC 斷開
TC 斷開
The door handle became loose and eventually broke off.
门把手变松了，并且最终脱落下来。
break [sth] off vtr phrasal sep: (snap, detach)
SC 掰下
SC 折断 zhé duàn
Olga broke off a large piece from the chocolate bar.
奥尔加从那板巧克力上掰下一大块儿。
break [sth] off vtr phrasal sep: figurative, informal (terminate)
SC 断绝（往来）
SC 绝（交）
SC 终止，结束，中断 zhōng zhǐ，jié shù，zhōng duàn
TC 終止，結束，中斷
TC 終止，結束，中斷
Matt and Glenda have decided to break off their engagement.
马特和格伦达决定解除婚约。
break it off v expr: informal (relationship: end) (非正式用语)
SC 断交 duàn jiāo
Sarah and John were going to get married next month, but she found he was having an affair and broke it off.