不懈

tā kào zhe jiān yì wán qiáng hé qín láo bù xiè fā dá qǐ lai le

他靠着坚毅顽强和勤劳不懈发达起来了。

With great perseverance and untiring industry, he prospered.

bù xiè de gé mìng jiā

不懈的革命家

unremitting revolutionist