Septavalency

(=septavalence)[化]七價

??? 情景例句

And good luck! I've got to go.
祝你好運 我得走了。
I'm sorry, but it's just not possible.
抱歉,實在是愛莫能助。
Cave exploration, or pot-holing, as it has come to be known, is a relatively new sport.
洞穴勘查——或洞穴勘探——是一項比較新的體育活動。
更多情景英語 ›

?? 更多 S 開頭的單詞

全部 S 開頭單詞 ›