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at least adv.至少
At least that 's the theory.
至少理论上是这样。
At least that's my perception.
至少这是我的看法。
So long 再见
So long, Vic!
别了，维克
In retrospect, it's surprising that this idea took so long to catch on.
现在回想起来，这种想法经历了这么长的时间才流行开来，的确是一件令人惊讶的事情。
n. 感知，认识，观念
