egg是可數(shù)名詞嗎

　　例句：

　　Eggs are graded from small to extra large.

　　雞蛋從小號到特大號分成不同等級。

　　The fish lay thousands of eggs at one time.

　　這種魚一次產(chǎn)卵數(shù)千個。

　　The other boys egged him on to fight.

　　其他孩子慫恿他去打架。