英语是：at that time。
解释：
at that time 英[æt ðæt taim] 美[æt ðæt taɪm]
adv. 当时; 在那时;
[例句]I cannot describe the feeling of contentment that was with me at that time.
我无法描述当时我满足的感觉。
At that time we were students.
那会儿我们还是学生。
The last paragraph contains an anachronism. The Holy Office no longer existed atthat time.
最后一段有一个时代错误。异端裁判所那时已经不存在了。
We were in the same college, which was male-only at that time
我们那时在同一所学院，当时只招男生。
It was at that time she started taking the contraceptive pill.
她就是从那个时候开始服用避孕药的。
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