讲解文本：
play the field (工作、恋爱等)不专一，三心二意 You'll never get Mark to go steady with you. He likes to play the field. 你永远别指望可以跟Mark稳定下来，他喜欢沾花惹草。 I don't think Mary is a person who loves to play the field. 我不觉得Mary是花心的人。
疯狂练习吧！
