beforehave是什么意思

　　I didn't have time to change clothes before the party.

　　我沒時間在聚會前更換衣服。

　　I've never produced a play before but I'll have a shot at it.

　　我從來沒有寫過戲劇，不過我要嘗試一下。

　　I'll die first, before I let you have all my money!

　　我寧愿死，也不會讓你得到我所有的錢！