Our life is becoming better and better.用来表示主语继续或保持一种状况或态度，主要有keep， remain， stay， lie， stand， 例如:He always keeps silent at meeting.
not soil sb's hand 不弄脏某人的手 === get a black mark for sth 因某事得到一个人生污点He never spoils his hand, so he never directly gets involved in any kind
