leave alone 　不管；不打扰leave behind　忘记；留下；使落后，丢在后面leave for 　出发去某地leave off 　停止做某事leave on 让.....留在原处；让（火）燃着leave out 遗漏；省略；删去；忽略leave over 留下，剩下，延后，推迟leave up to 由某人做决定