Lehmannite
铬铅矿
🗣️ 情景例句
I would like to make an appointment for tomorrow morning please.
我想预约明天早上见面。
After dinner sit awhile,after supper walk a mile.
正餐以后，休息片刻；晚餐以后，步行一哩。
My brother is seeking a job.
我弟弟正在找工作。