perceptible
单词辨析：
指声音足够大，可以被听到的。
His voice was so feeble that it was hardly audible.
他的声音微弱得叫人难以听见。
There was an audible sigh of relief.
听得出来松了一口气。
普通用词，指声音、信号等听起来很清晰的。
He has a clear speaking voice.
他说话清晰。
The sound is as clear as a bell.
声音很清晰。
The radio reception isn't very clear.
收音机的接收效果不太好。
指声音、变化等虽然微小，但仍可被注意到的。
The noise was barely perceptible to the human ear.
人的耳朵几乎是察觉不到那种噪音的。
The change is small but perceptible.
变化很小，却是可察觉的。
相关例句：
Something perceptible to the senses.
可实证物感觉器官能察觉到的事物。
Mark's success at university had a very perceptible change on his life.
马克在大学里的成功使他的生活发生了可察觉的变化。
A perceptible sense of expectation in the court; an obvious ( or palpable) lie.
法庭上显而易见的期待感；一个显而易见的（或明显的）谎言。
Simon turned away from them and went where the just perceptible path led him.
西蒙转身离开了他们，沿着勉强辨认得出的小路走去。
Something perceptible by one or more of the senses, especially by vision or touch; a material thing.
物体，实物用一种或多种感官，尤指用视觉或触觉可以感觉到的东西；
A perceptible indication of something not immediately apparent ( as a visible clue that something has happened).
可以感觉到的（象发生事件的可见线索那样）不十分明显的标志。