at the mercy of片语KK [æt ðə ˋmɝsi ʌv] /æt ðə ˈmɝsi ʌv/发音片语1受…支配、任由…摆布Small farmers are at the mercy of the big supermarket chains.小农完全受大型连锁超市支配。2任…宰割、任…摧残With no shelter left, the climbers were at the mercy of the storm.没有任何遮蔽,登山者只能任暴风雪摧残。用这个字练口说→