This is a serious crime.

这是严重的罪行。

Child abuse is a serious crime.

虐待儿童是很严重的犯罪案件。

Drunk driving is a very serious crime in the us.

在美国酒醉驾车是严重的罪行。

I've committed a serious crime, which I want to confess to you.

我犯下了一项大罪，想向您坦白说出来。

Most countries have laws that make forced labor a serious crime.

大部分国家都制定了法律来严惩从事关于强迫劳动力的犯罪。