Tetraethide
四乙基金属
🗣️ 情景例句
That leaves a lot to be desired.
太不让人满意了。
I'd like to make an appointment with Professor Smith. Would 9:00 tomorrow be all right?
我想和史密斯教授约个会面时间。明天9点行吗？
At the age of twelve years, the human body is at its most vigorous.
人体在12岁时是生命力最旺盛的时期。