button-upCOCA⁹²¹⁴⁶BNC¹⁰⁴⁵⁸⁴⁺⁶iWeb³⁶³⁴⁰ 基本例句 na.别讲话；关闭机器等；完全做好；美军俚侥幸完成任务 Trying to button-up our true feelings does more harm than good, Prof Zapf of the Johann Wolfgang Goethe University of Frankfurt warned. 试著关闭我们的真实感受弊多于利，法兰克福歌德大学的札夫教授警告。 esl99.com