Usually, you must sleep for at least seven to eight hours every day, or you will get dark circles under the eyes.

通常，你必须每天至少睡7-8小时，否则你会有黑眼圈。

youdao

Usually, you must sleep for at least seven to eight hours every day, or you will get dark circles under the eyes.

通常，你必须每天至少睡7-8小时，否则你会有黑眼圈。

youdao