Their quick ears caught the sound of an approaching footstep.

他们灵敏的耳朵听到了靠近的脚步声。

There came a little, inarticulate sound from the boy. But Emma's quick ear caught it.

男孩发出了一点点含混不清的声音。但是艾玛灵敏的耳朵听出来了。

He stood, listening, intently watching with alert eyes; the zwirr of myriads of little travelling feet caught his quick ear — the moving mass was an immense colony of beaver.

他站着听着， 用警觉的眼睛专心地注视着。 无数移动的小脚发出的嗡嗡声引起了他灵敏的耳朵——移动的物体是一大群海狸。

He sat without changing his attitude in the least, or appearing to take the smallest heed of time, until his quick ear seemed to be attracted by a footstep in the street.

他坐在那里，丝毫没有改变自己的态度，也没有表现出丝毫留意时间的样子，直到他灵敏的耳朵似乎被街上的脚步声吸引住了。

To lift an autumn hair is no sign of great strength; to see the sun and moon is no sign of sharp sight; to hear the noise of thunder is no sign of a quick ear.

故举秋毫不为多力，见日月不为明目，闻雷霆不为聪耳。