ph.

1. He has sworn off drinking.
他已保证戒酒。

2. Uncle George swore off gambling, drinking and womanizing.
乔治叔叔发誓戒赌、戒酒、戒女色。

1. 发誓戒除：swear like a trooper 大骂 | swear off 发誓戒除 | swear on 发誓

2. [口]发誓戒(酒等), 发誓不再, 答应放弃：swear home 破口大骂 | swear off [口]发誓戒(酒等), 发誓不再, 答应放弃 | swear on 凭...起誓

3. 保证戒掉：swear in 使宣誓就职(常被动) | swear off 保证戒掉 | in a cold sweat 出冷汗

4. 保证戒掉,放弃：Swear in 使宣誓就职 | Swear off 保证戒掉 放弃 | 7 ant 蚂蚁

verb

1. promise to abstain from

e.g. I have sworn off cigarettes altogether