短句聽(tīng)寫(xiě)
All animals with mobile eyes are equipped with a tearing system that keeps their eyes lubricated, protecting their eyes from the elements and so on.
所有眼球會(huì)動(dòng)的動(dòng)物都有淚腺。淚腺可以保持眼部的潤(rùn)滑，還能防止惡劣天氣損傷眼睛，等等。