By last night

• 到昨天晚上

By last night的用法和样例：

例句

1. They have finished their work by last night.
   他们到昨天晚上就完成工作了。
2. I was shocked to hear about the fire on last night's news.
   听到昨天晚上的新闻报道那场火灾，我很吃惊。