Calclamnidae
鈣海參科
??? 情景例句
I think I know you. Aren't you...?
我覺得我認識你。你是……嗎？
Besides the required courses, I'm taking an elective in the Lab Science.
除必修科目外，選修科目我選了實驗科學(xué)。
There is a house near the river.
小河旁有一間房子。