After listening for a while, Esperanza was able to play the music by ear.

VOA: special.2010.04.09

He learns music by ear and maybe plays records over and over again.

他用耳朵来学习音乐,可能就是一遍又一遍地放录音。

麻省理工公开课 - 电影哲学课程节选

And bathing inside the inner ear fluids where they become stimulated by sound waves and acceleration forces.

毛细胞悬浮在内耳液中,接受声波和其它外力的刺激。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

Our last expression is to play it by ear.

VOA: special.2009.09.13

Rituparna tells Nala that he knows the science of gambling and he will teach it to Nala, but that it has to be done by whispering it in his ear because it's a deep and extreme secret.

睿都巴若那对那勒说,他了解赌博术,并且会传授给那勒,但只能是口耳相传,因为这是一个秘密

耶鲁公开课 - 金融市场课程节选

"You know the thickness, tolerances of wood has to be exactly right for the right tone, and volume of a soundboard has to be measured exactly, and that's done mostly by ear.

VOA: standard.2010.07.06

A TV was on. My eyes were elsewhere, but my ear was caught by the unmistakable voice of Walter Cronkite.

VOA: special.2009.08.16