Phosphowolframic acid
[机] 磷钨酸
🧩 词语组成解析
🗣️ 情景例句
Second, we have to make an effort to encourage American companies to do business in our country.
第二，我们必须鼓励美国公司在我国开展业务。
Experience teaches.
经验给人教训。
No, we don't.
没有。