副詞 before long:

1. in the near future
   同義詞：soon, shortly, presently

1. It looks as if it will rain before long.
   看起來一會兒就要下雨了。
2. His plan seemed to be too difficult, but before long it proved to be practicable.
   他的計劃看起來太困難，但是沒多久就被證明很實用。
3. I hope to write to you before long.
   我希望不久就能給你寫信。
4. Before long our family moved and had to give the pet away.
   不久我們搬家了，不得不把寵物送人。