281.in the twinkling of an eye一眨眼，转眼间
282.keep an eye on (=keep a watch on)照看，监视
283.in the eyes of in one‘s eyes (= in the judgment of)在某人看来，在某人眼里
284.on the face of it (=judging by what one can see)表面看来
285.in the face of面对着(困难等情况)
286.in one‘s face当着某人的面;face to faced面对面;face up to大胆面向
287.fail in (=be unsuccessful in)失败
288.in good faith (=honestly，sincerely)真诚地
289.keep faith with对……守信用
290.lose faith in对……失去信心