I think the tree is several hundred years old.

我想这棵树得有几百年的历史了。

youdao

The sick tree is several hundred years old.

这棵病树已生长了好几百年了。

youdao

I think it was several hundred years, a hundred years old, 200 years old, 300 years old, 600, 700, 800, 900 years old.

我想应该是几百岁，一百岁，二百岁，三百岁，六百，七百，八百，九百岁。

youdao

I think it was several hundred years, a hundred years old, 200 years old, 300 years old, 600, 700, 800, 900 years old.

我想应该是几百岁，一百岁，二百岁，三百岁，六百，七百，八百，九百岁。

耶鲁公开课 - 死亡课程节选

Two and a half years after Merck gave its vaccine to several hundred 16-to 23-year-old women in a recent trial, none were infected with the strain they had been vaccinated against, while 5% had become infected with another common cancerous strain.

FORBES: Cornering A Killer