1. He thought for a long time before he acted.
   他考虑了很久才行动。
2. I hope to be able to study abroad before long.
   我希望能很快就去留学
3. His eccentricity had become legendary long before he died.
   在他去世之前他的古怪脾气就早已闻名遐尔了。
4. That event took place long Before we were Born.
   这件事发生在我们出生以前很久
5. Their marriage was washed up long before they separated.
   他们分居前婚姻早已破裂了.

　1个副词解释