crop up

英 [krɒp ʌp]

美 [krɑːp ʌp]

（常指出其不意地）出现，发生

柯林斯词典

• PHRASAL VERB (常指出其不意地)出现，发生
  If somethingcrops up, it appears or happens, usually unexpectedly.
  1. His name has cropped up at every selection meeting this season...
     他的名字突然出现在这一季所有选举会议上。
  2. Problems will crop up and hit you before you are ready.
     你还未准备好，问题就会突然出现并打击你。

英英释义

verb

• appear suddenly or unexpectedly
  1. The farm popped into view as we turned the corner
  2. He suddenly popped up out of nowhere
  Synonym:pop uppop

双语例句

• Mistakes must be criticized and poisonous weeds fought wherever they crop up.
  有错误就得批判，有毒草就得进行斗争。
• The researchers said the differences in performance crop up long before the tall people enter the job force.
  而研究人员称，这些差别早在他们开始工作前就显现出来了。
• In any job, difficult situations will crop up.
  任何工作都会有突然出现的问题。
• They are pressing forward with their work in spite of the difficulties that crop up from time to time.
  尽管不时发生困难，他们还是坚持工作。
• For one thing, annoying technical glitches sometime crop up.
  首先，有时发生让人烦恼的技术故障。
• It's unclear how often this problem might crop up in other young children.
  目前不清楚这个现象出现在年轻孩童身上的频率为何。
• It had never occurred to her that a new possibility would crop up abruptly.
  她万万没有想到会突然出现一种新的可能性。
• And what happens when security issues do crop up in open source?
  当在开放源码中突然出现安全性问题时，会发生什么呢？
• Some of the best opportunities will crop up if you keep an open mind.
  如果你保持思想开放，会有一些非常好的机遇。
• As china changes, many problems are solved and new ones crop up.
  中国社会的变化，使得许多问题得到了解决，同时也产生了一些问题。