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/krɒp ʌp/
突然出现；意外发生
Problems 🔊 always 🔊 seem 🔊 to 🔊 crop 🔊 up 🔊 at 🔊 the 🔊 last 🔊 minute 🔊 .
问题总是在最后一刻才突然出现。
Problems always seem to crop up at the last minute.
