1·They bumped him off because he knew too much about their illegal activities.
他们把他谋杀了，因为他对他们的非法活动知道得太多了。
—— 《新英汉大辞典》
2·Research shows that young people are more likely to be tricked into participating in illegal activities.
研究表明，年轻人更容易受骗参加非法活动。
3·At the same time, they would break the illegal excavator's grip on the market, thereby decreasing the inducement to engage in illegal activities.
同时，他们也可以打破非法挖掘机对市场的控制，从而减少从事非法活动的诱因。
4·His illegal activities were nearly uncovered many times.
他的违法行为很多次几乎被揭露。
5·Money often makes people do bad things, even illegal activities.
钱经常使人去做坏事，甚至是违法的行为。
6·He dared to disclose illegal activities in his native place.
他敢于揭露当地的非法活动。
7·Is it really so hard for a wrongdoer to wash his hands of illegal activities?
一个罪犯对违法之事洗手不干真的有那么难吗？
8·That additional income might have come from unreported employment or illegal activities.
那部分额外的收入可能来自于未报告的工作或者非法行为。
9·"We must gravely crack down on those illegal activities and will never relent, " Li said.
李说：“对于这些违法行为，我们必须给予沉重打击，而且从不心慈手软。”
10·We also find that they run a higher risk of getting involved in illegal activities as teenagers.
我们同时发现，他们在少年时期参与非法活动的可能性很高。