So when it's followed by a vowel, it has the flap sound like a Japanese R.

所以当它后面跟着一个元音时，它的拍动音听起来就像日语里的 R 。

His ears were full of a loud, flapping sound, which he took to be imaginary until he realized that the engine had been shut off and that the plane was rushing against a gale.

他的耳朵里充满了巨大的拍打声，他以为这是想象出来的，直到他意识到发动机已经关闭，飞机正在顶着大风疾驰。