v.堅持；不屈不撓

When things get difficult, you just have to grit your teeth and persevere. 遇到困難只需咬緊牙關堅持下去。

If you persevere with work, you'll succeed in the end. 你如果把工作堅持下去，最終會取得成功的。

He was hopeless at French, but his teacher persevered with him. 他怎么也學不會法語,可是老師仍鍥而不舍地幫助他。