sb.

The government sent sb. to inspect our school.

政府派来视察我们学校。

The man was on trial for killing sb.

此因杀而受审。

A trustworthy person is sb. that you can trust.

靠是任。

I had an uneasy feeling that sb. was watching me.

有着看我，我感到挺不自。

There's sb. lurking behind that bush.

有埋伏灌木丛后面。

There has been a disturbance in the street; sb. has been hurt.

街上发生了一阵骚乱，有被打伤了。