是build的音标。

build的过去式和过去分词是built，有以下几种含义：

1、建造，建筑

They are going to build a house in the countryside.

He built a shed for us.

2、创建，开发

We want to build a better life.

She's built a new career for herself.

3、 逐渐增强

The tension built gradually all day.