Septavalency
(=septavalence)[化]七价
🗣️ 情景例句
for the one seat on the Riverdale School Board,
争夺Riverdale联合校董会一个席次
A man without money is a bow without an arrow.
人无钱，犹如弓无箭。
On the last day I made a big decision.
到了最后一天，我作出了一项重大决定。