1.  before
2.  previously

• 1. 以前: ago ad | Previous | at one time | before
• 2. 很久以前: long ago | once upon a time | long before | long since
• 3. 以前的: former | previous | past | gestrig

更多释义

• 1.他们会在天黑以前回来。
  They'll be back well before dark.
  dict.yoduao.com
• 2.你以前做过这种工作吗？
  Have you done this type of work before?
  dict.yoduao.com
• 3.我比以前吃得少多了。
  I eat lots less than I used to.
  dict.yoduao.com

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