久经考验

tā shì gè jiǔ jīng kǎo yàn de zhàn shì

他是个久经考验的战士。

He is a seasoned soldier.

yī zhǒng jiǔ jīng kǎo yàn de jiě jué wèn tí de fāng fǎ

一种久经考验的解决问题的方法

a tried method for solving the problem

jiǔ jīng kǎo yàn de yì shí xíng tài chàng dǎo zhě

久经考验的意识形态倡导者

well-practised ideological entrepreneur