兵來將擋，水來土掩 [ㄅㄧㄥ ㄌㄞˊ ㄐㄧㄤˋ ㄉㄤˇ , ㄕㄨㄟˇ ㄌㄞˊ ㄊㄨˇ ㄧㄢˇ; bing1 lai2 jiang4 dang3 , shui3 lai2 tu3 yan3]
 counter soldiers with arms, water with an earth weir (idiom); different situations call for different action
 to adopt measures appropriate to the actual situation

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