1.
Three days ago.
三天以前，大前天。
2.
"The other night she left."
“前天晚上走的。”
3.
He got to Harbin the day before yesterday.
他前天到哈尔滨的。
4.
I went to see Comrade Chen Yun the day before yesterday.
前天我去看陈云同志。
5.
He write three letter the day before yesterday.
他前天写了3封信。
6.
I saw John the day before yesterday .
我前天见到约翰了。
7.
Dalian. I got back the day before yesterday.
大连。我前天回来的。
8.
It(The sun) will burn off before noon.
中午以前天会放晴。
9.
We studied Lesson 6 the day before yesterday.
我们前天学习了第六课。
10.
He saw two tigers the day before yesterday.
他前天看见了两只老虎。
11.
He painted his house the day before yesterday.
他前天油漆房子了。
12.
"I saw her the day before yesterday," he said.
他说：“我在前天看到她。"
13.
Rain before seven, clear by eleven.
早晨下雨，午前天晴。
14.
In preliberation days the daily necessities were marked up every day.
解放前日用品天天涨价。
15.
two (three, etc) evenings ago
两（三）天前的晚上
16.
From"Fate of Heaven"to"Heaven"--The Prelusion of the Concept"Way of Heaven"in Dongzhou Dynasty
由“天命”而“天象”——东周“天道”观念的前奏
17.
Could you get off early tomorrow?
明天你可以提前下班吗?
18.
The boss broke him three days ago.
3天前老板把他开除了。