Pervanadate
过钒酸盐
🗣️ 情景例句
Why do you want to resign your position as secretary?
你为什么想辞去秘书的职务？
Would you mind opening the window?
你介意开窗吗？
and an American-made dialysis machine needs the EU's okay before is hits the market in Europe.
而美国制造的透析仪也要得到欧盟的首肯才能进入欧洲市场。