robin

n. 知更鸟

If you wish to catch that robin, try putting a pinch of salt on its tail.

你要是想抓住那只知更鸟，设法撒一点盐在鸟尾巴上，这样就能逮住它。

The people in our neighborhood are sending a round robin to the Air Force to protest the nice the jet planes make flying over our house.

我们这一带的居民在向空军部队递交一份有环形签名的抗议书，就喷气式飞机飞越我们住宅上空时产生的噪音问题提出抗议。