Vanadoan
含有亚钒的, 二价钒的
🗣️ 情景例句
Thank you. Would you like something to drink? A cup of coffee?
谢谢。你想喝点儿什么？来杯咖啡吗？
Business before pleasure.
事业在先，享乐在后。
During the day, sleep comes in snatches.
白天是忽睡忽醒，