She nodded almost imperceptibly and then opened her mouth, but Snape forestalled her.

她几乎不易察觉地点了点头，张开嘴想说话，但斯内普抢先阻止了她。

She shook her head almost imperceptibly, then resumed her own deadpan stare at the opposite wall.

她令人无法察觉地摇了摇头，然后又继续面无表情地盯向对面的墙了。

January faded imperceptibly into February, with no change in the bitterly cold weather.

一月份不知不觉地变成了二月份，寒冷的天气却没有变。

Then, imperceptibly, we were in deep hammock.

然后，不知不觉中， 我们陷入了深深的吊床。

Most are so far away that they move imperceptibly.

大多数都离得很远， 以至于他们不知不觉地移动着。

Moreover, as she grovelled, she moved imperceptibly nearer to her objective.

而且，她一边低着头， 一边不知不觉地靠近了目标。

Sue imperceptibly shrank away, her flesh quivering under the touch of his lips.

苏不知不觉地缩了回去，她的肌肤在他唇瓣的触碰下微微颤抖。

The diameter is held to a great height, the taper being almost imperceptibly gradual.

直径保持在很高的高度， 锥度几乎是难以察觉的渐变。

So, sometimes evolutionary changes are big and obvious, but sometimes they're almost imperceptibly small.

所以， 有时进化的变化是巨大而明显的，但有时它们几乎是难以察觉的。

So imperceptibly I found myself adopting a new attitude towards the other half of the human race.

不知不觉中，我发现自己对另一半人类采取了新的态度。