I'm leaning colours. I become smart.

我正在学习颜色。我变聪明了。

youdao

I become smart.

我变得聪明。

youdao

When I was 14, I couldn't stand my father, he was stupid, But when I was 21, I was surprised to find that he had become so smart in seven years!

当我14岁时，我受不了我的父亲，他愚蠢极了。但是我21岁的时候，我很惊讶他七年变得这么聪明！

youdao

It's Berlin, and I'm in a Smart car, DaimlerChrysler's tiny two-seater that has become a familiar sight in Europe's cramped city streets.

CNN: Behold the?all-seeing, self-parking, safety-enforcing, networked car