Ellen's face wrinkles as if she is about to sneeze.艾伦的脸皱了起来,好像要打喷嚏。When we sneeze, our eyes close.打喷嚏的时候眼睛会闭上。What exactly happens when we sneeze?我们打喷嚏究竟是怎么回事?...
风险不可能完全消除,但可以通过防范和培训来降低。You could never eliminate risk, but preparation and training could attenuate it.公司在降低成本方面付出了艰苦卓绝的努力。The company has made heroic efforts at cost reduction.抑郁症会降低人体对疾病的抵抗力。Depression lowers the huma...