前一的用法和样例:
例句
-
乘客至迟应在班机起飞前一小时办理登机手续。
Passengers should check in one hour before their flight time at the latest. -
你以前一定见过他。
You must have seen him before. -
虽然我非常希望增加体重,但我仍然像以前一样的瘦。
Much as I hope I may gain weight, (yet) I am still as thin as before. -
圣诞节前一周,孩子们到各家各户去唱圣诞颂歌。
The children went carolling during the week before Christmas. -
来访者在中午前一会儿离开了。
The visitor left a little before noon. -
老人前一天晚上停止了呼吸。
The old man ceased breathing the night before.