那时的英文：
at that time

参考例句：

The sky hazed over then.
那时天空变得灰蒙蒙的。

Hip-hop was in the air at the time.
那时嘻哈开始流行。

He was 50 and greying.
他那时50岁头发就渐白了.

I was 17 and filled with a lot of hate.
我那时17岁，怀着满腔仇恨。

She rushed out of the room with her pajamas, when snow was spitting.
她穿着睡衣裤冲出了房子，那时正下着小雪。

I used to eat out in the evenings when my parents were on night shifts.
那时，逢到我父母上夜班，我就在外面吃晚饭。

"By then, the global population is expected to reach 9.3 billion. "
那时的全球人口总数预计会达到93亿。

At that stage he will be 52, young enough to return to politics if he wishes to do so.
那时他将会是52岁，还很年轻，如果他希望的话，仍可重返政坛。

Then doubts and fears did assail the very strongest.
那时，疑惑和恐惧的确困扰过意志最坚强的人。

It would have to last at least until the morrow, when he would once again shuffle through the cold.
这一刻似乎至少要持续到明天，那时他会再一次踏入寒风之中。

time是什么意思：
n. 时间；（一段）时光；时机；机会；历史时期；时代；次；回；倍
v. 测定…所花时间；调准；调整；测定…所花时间
adj. 时间的；定时的；定期的；分期的

discrimination time
辨别时间辨别时间

It is time to go.
该走了。

They are not in step with the times.
他们跟不上时代的步伐。

This was for the time only.
这只是一时的权宜之计。

What for this time?
这次又是为什么？