单词学习：foul-up 名词（可数）
foul-up
/ˈfaʊl ʌp/
混乱，差错，故障；一团糟的局面
The schedule foul-up caused by the delayed flight meant that Professor Gu had to reschedule all his meetings.
由航班延误造成的日程混乱意味着顾老师不得不重新安排他所有的会议。
单词卡片
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