forswore

Some priests have to forswear marriage.

有司必须宣誓放弃婚姻。

You must tell the truth to the judge, because if you forswear yourself you could go to prison.

你必须向法官说老实话，因为你如果作伪证就可能坐牢。

The old man forswore smoking.

那老人下决心戒。

In 1860, 84 years after the publication of “The Wealth of Nations”, Britain forswore most import duties.

在《国富论》出版84年后的1860年，英国才取消了大部分进口关税。