Dimethylmethane
n. [化]二甲基甲烷,丙烷
🗣️ 情景例句
I've been wanting to meet you for some time.
很久以来我一直想见你。
How much is the postage for this?
这个邮费要多少钱？
Is this a D or a P?
这个字母是“D”还是“P”？