Septavalency
(=septavalence)[化]七价
🗣️ 情景例句
Breathing this air is killing me.
呼吸这样的空气真是致命。
How long will you be out?
你将出去多久？
'Have you anything to declare?' he asked, looking me in the eye.
“您有什么需要申报的吗？”他直盯着我的眼睛问。