I detected a suggestion of malice in his remarks.

觉察出话略带恶意。

It was what she left unsaid that worried me.

叫担心是她觉察到而未出。

Doctors often sense uneasiness in the people they deal with.

医生常常会觉察到病人不安情绪。

I hinted at his imprudence, his folly, but he did not take my hint.

暗示轻率, 愚蠢, 但没有觉察暗示。

The slight change in the taste was imperceptible to most people.

这种味细微变化对大多数人而言是无法觉察。

The transition is almost imperceptible.

这种过渡几乎觉察不到。

She has perceived the danger.

她已觉察到那危险了。

He scented danger.

觉察到有危险。

The difference between a moral man and a man of honour is that the latter regrets a discreditable act even when it has work.

有德人与君子之间差别是，即使在干了丢脸事情而不为人所觉察，后者也会后悔。