疾風勁草 [ㄐㄧˊ ㄈㄥ ㄐㄧㄥˋ ㄘㄠˇ; ji2 feng1 jing4 cao3] the storm put strong grass to the test (idiom); fig. troubled times test a faithful minister to show one's true colors after a stern test ◄ ►