Vanadoan
含有亚钒的, 二价钒的
🗣️ 情景例句
Are you sending it by regular or by speed?
你要寄平信还是快递？
I need the change for the stamp machine.
我需要投入自动售邮票机的零钱。
I like sitting by the Wayle on fine afternoons.
我喜欢在天气晴朗的下午到河边坐坐。