至少 (zhì shǎo): at least

It takes at least twenty minutes to get from home to school.

This apple weighs at least three jin.

You should at least give me a call first.

He can get at least eighty points on this exam.

We need at least five people to complete this task.

We need at least three people to help.

He was at least half an hour late.

This trip will cost at least five thousand yuan.

This problem has at least two solutions.

At least he tried; we shouldn't blame him.