beforehand

中文意思

• adv. 預先

英文解釋

• adj. being ahead of time or need
• adv. ahead of time; in anticipation

例句

1. adv. 預先

   If you want to attend the seminar, you need to register online beforehand.

   如果你想參加這場研討會，你需要預先在網路上報名。