三天以前 Three days ago是简略回答。完整的回答应该是：We had a meeting three days ago.
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三天以前
Three days ago
以上为机器翻译结果，长、整句建议使用 人工翻译 。
那是三天以前，一切似乎都没问题了。
That was three days ago when all seemed well and dandy with the world.
youdao
三天以前我们就决定去参观长城。
Three days ago we decided to visit the Great Wall.
三天以前我就告诉你了，我在等一笔汇款。
I told you three days ago I was awaiting a remittance.
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