老鼠察觉到危险，没有触碰那鼠夹。
他完全没有察觉到危险。
前一天晚上我一点都没察觉到危险，我一点都没想到自己会做下一个糟糕透顶的决定。
At no point the evening before had I felt at risk. At no point did I think I was making a bad decision.
现在，“除了每个人在他们察觉到危险时采取措施确保自己的安全之外，我不知道有什么可做的，”张伯伦作出结论。
For now, "I don't know what can be done, other than individuals taking steps to ensure their own safety when they perceive a risk," Chamberlain concluded.
如果你正处于困境，或是处在濒临危险的商业，你怎样才能在跌到之前察觉到警告的信号呢？
If you're in a troubled or dying industry, how do you spot the warning signs before you fall?
新加坡还开创了一些良好政策，帮助防止一些已察觉到的中医药危险。
Singapore has also pioneered some good policies that protect against some perceived dangers of traditional Chinese medicine.
他没有察觉到（不知道）危险。
击键记录者是特别危险的安全威胁，因为他们即使存在，安全记录危险用户通常也没有察觉到。
Keystroke loggers are a particularly dangerous security threat because users typically don't realize they're even there.
人们可能会心感恐惧，但并不能全然察觉到周围将发生什么危险。
One may be conscious of fear, but not altogether aware of the danger which is going on about him.
马察觉到有危险，于是停了下来。
马察觉到有危险，于是停了下来。
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