be about

大约

例句与用法：

It must be about four thirty.

现在想必是四点半左右。

It must be about ten-thirty.

现在想必是10点30分左右。

We estimated his income at/to be about 8000 a year.

我们估计他一年的收入大约8000英镑。

I judge him to be about 40.

我断定他有40来岁。