我们八点开始上课。

We begin classes at eight.

youdao

八点左右我去上学，我们九点开始上课。

At around eight o'clock,I go to school ,school starts at nine o'clock.

youdao

我们在八点开始上课。

We begin classes at 8:00.

youdao

我们在八点开始上课。

We begin classes at 8:00.

youdao