Translation of "Ninety" in Chinese

A right angle has ninety degrees.

直角是九十度。

My grandfather lived to be ninety.

我的祖父活到了九十歲。

A hundred minus ninety is ten.

一百減九十等於十。

- I am sure of his living to be ninety years old.
- I'm certain that he will live to be ninety.

我肯定他可以活到90岁。

It's valid until March thirty-first, nineteen-ninety-seven.

有效期到1997年3月31日为止。

He told me that his grandfather is over ninety.

他告訴我他的祖父已經有九十多歲了。

My grandmother is already more than ninety years old.

我祖母已经九十多岁了。

- Ten, twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety, hundred.
- Ten, twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety, one hundred.

十、二十、三十、四十、五十、六十、七十、八十、九十、一百。

- It is not rare at all to live over ninety years.
- It's not at all rare to live to be over ninety years old.

活到90岁以上一点都不稀奇。

In German, there are over ninety verbs with the prefix "ent-".

在德语中，以 ent 为前缀的动词超过九十个。

It is not rare at all to live over ninety years.

活到90岁以上一点都不稀奇。