Plattnerite
块黑铅矿
🗣️ 情景例句
Then, when shall we sign the contract?
那么，我们什么时候签合同？
Why do you dislike the medicine so much?
为什么你如此不喜欢药？
She left home when she was eighteen and has lived in Los Angeles for the past fifteen years.
18岁时，她离开了家。过去的15年里她一直住在洛杉矶。