1·Keep calm when problems crop up.
遇事冷静。
—— 《新英汉大辞典》
2·It's silly to paper over the problem; it will only crop up again one day.
把这个问题掩盖起来的作法是愚蠢的，总有一天还会暴露的。
—— 《新英汉大辞典》
3·Did something unexpected crop up?
是不是有一些意想不到的事情突然发生?
4·Similar problems crop up at traditional companies.
在传统的公司里，类似问题也会突然发生。
5·The same principles of good design crop up again and again.
同样原则支配着不同领域的设计。
6·Generation gaps are huge, and they crop up more than every decade.
代沟很大，并且每10年产生得更多。
7·This is one area where the downsides of language extension crop up.
这是语言扩展不擅长的领域之一。
8·When unexpected disasters crop up, they wreak havoc on our productivity.
当突发性的灾难降临时，它会严重影响我们的生产力。
9·Questions like this crop up frequently -where do things from the past belong now?
诸如此类的问题频繁出现：历史文物现在究竟属于哪里？
10·Acne lesions heal slowly, and when one begins to resolve, others seem to crop up.
痤疮病损愈合缓慢，而且一个痤疮刚有痊愈迹象，其他的又要冒头了。