Phosphotungstate
磷钨酸盐
🗣️ 情景例句
Nothing.
没有什么。
Try your friend ere you trust him.
对朋友要先考验，后信任。
Have you ever put your trousers in the washing machine and then remembered there was a large bank note in your back pocket?
你有没有把裤子塞洗衣机，然后又想在裤子的后兜有一张大面值的纸币？