A big black bug bit a big black bear, made the big black bear bleed blood.

大黑虫咬大黑熊，大黑熊流血了！

大黑虫咬大黑熊，被大黑虫咬的大黑熊在那里呢？

A bitter biting bittern bit a better brother bittern, and the bitter better bittern bit the bitter biter back. And the bitter bittern, bitten, by the better bitten bittern, said: "I'm a bitter biter bit, alack!"

A bloke's back bike brake block broke.

一个家伙的脚踏车后制动器坏了。

A box of biscuits, a batch of mixed biscuits.