吸烟之危害，可谓大矣，其严重性是不能低估的。

Smoking does great harm to human and its gravity should not be underestimated.

youdao

死生亦大矣。

The ancients regarded death as the great question.

youdao

他83岁了，这两年我们都看到他的身体在每况愈下，他自己也知道恐怕离大去之期不远矣。

He was 83, and for the past two years we had watched his body slowly running down. He knew this was coming.

youdao