一只大黑虫子咬了小甲虫，而小甲虫又反嘴咬了那只大黑虫子。

Black bug bit a big black bear. But where is the big black bear that the big black bug bit?

youdao

一只大黑虫子咬了小甲虫，而小甲虫又反嘴咬了那只大黑虫子。

Black bug bit a big black bear. But where is the big black bear that the big black bug bit?

youdao