Vanadol
双氧钒基
🗣️ 情景例句
Could you tell me a little about your background?
能否请您简短地谈一下贵公司的背景？
Wasn't the issue settled?
问题不是解决了吗？
Han Meimei, can I borrow your ruler, please?
韩梅梅，借我你的格尺用一下吧。