Xanthene
n. [化] (夹)氧杂蒽
🗣️ 情景例句
I do.
我愿意。
Sorry, I guess I wasn't thinking. I won't do it again.
对不起。我对这事没想过，下次不这样了。
Portable boiling elements that can boil small quantities of water are useful when the right voltage of electricity is available.
如果有相配的电压，可以煮少量水的便携式热水装置是有用的。