Polonide
[化] 钋化物
🗣️ 情景例句
Claims, if any, must be made within 30 days after the arrival of the goods.
索赔必须在货物抵达目的地后30天内提出。
To be true to the husband
忠于丈夫
why have we had no visitors from outer space yet?
那么我们为什么还未见到外层空间来访的客人呢？