Pbenethium
[医] 酚乙铵
🗣️ 情景例句
Learning to express oneself well in an important part of education.
学会把意思表达清楚是受教育的一个重要方面。
How long will you remain in the country?
你将会在乡间逗留多久？
The railway station was big, black and dark.
火车站很大，又黑又暗。