Perischoechinoidea
圍舒海膽亞綱
??? 情景例句
He's probably right.
他也許是對的。
I ran all the way to school, otherwise I'd have been late.
我一路跑到學校，不然就遲到了。
I repeated my question several times and at last he understood.
我把問話重復了很多遍。他終于聽懂了。