rotten apple片语KK [ˋrɑtən ˋæpəl] /ˈɹɑtən ˈæpəl/发音片语1害群之马、败类A few rotten apples have damaged the whole department's reputation.少数几个害群之马毁了整个部门的名声。2坏蛋、坏人口语He turned out to be a rotten apple who cheated his own friends.结果他是个连朋友都骗的坏蛋。用这个字练口说→