[yìng dá rú liú]   

应    答    如    流    对答像流水一样。形容答语敏捷流利。

应答如流，汉语成语。拼音：yìng dá rú liú 。 释义：对答像流水一样。形容答语敏捷流利。

Answer as quickly as the flowing of water

应召修文    应变无方    应天承运    应名点卯    应付自如