每场演唱会，他们至多表演半个小时。

They play for no more than half an hour per concert.

这条一岁的咸水鳄至多30厘米长，藏在海边的植物里。

This one-year-old is no more than thirty meters long and it's hiding among the plants at the edge of the sea.

他上学至多要走五英里。

He walks no less than five miles to school.

篮子里至多有15个鸡蛋。

Eg:There are not more than fifteen eggs in the basket.

总统至多担任两届，也就是八年。

A president cannot serve more than two terms, for a total of eight years.

并发运行至多N个命令.

Run up to N commands in parallel.

我一天至多抽一包香烟。

I smoke a pack of cigarettes a day, max.

这男孩看上去至多九岁。

The boy looked nine at most.

活酵母会失效，至多可保留一年。

Live yeasts will expire. It should not be stored longer than a year.

这至多不过是个小过错。

It was a minor offense at most.