采采蝇为传染昏睡病的媒介.The tsetse fly is a bearer of sleeping sickness.昏睡症的致命感染始于采采蝇的一叮.The fatal infection begins with the bite of a tsetse fly.通过被感染的采采蝇的叮咬传染给人类.It is spread to humans through the bite of infected tsetse flies....
She muscled through the throngs of people, frantically searching for David.她使劲挤过人群, 拼命寻找戴维.They muscled the old piano out of the room.他们使劲把旧钢琴搬出房间.The dancing lessons muscled her legs.舞蹈课使她腿部肌肉发达....