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
