每晚一次，每次二片，连续服用三个月。

Take once every night, 2 tablets each time for 3 months.

youdao

每晚都会被朋友的短信或电话惊醒一次。

Electronic media woke them up once a night, when they were texted or called by a friend.

youdao

所以他们其余的时间只能在街上见面，每晚在一个不同的地点见面，且一次绝无可能超过半小时。

For the rest they could meet only in the streets, in a different place every evening and never for more than half an hour at a time.

youdao