Paramethadlone
乙甲雙酮
??? 情景例句
I'm leaving for Beijing on a four-day tour.
我馬上要去北京旅游4天。
Please make sure that the goods be protected from moisture.
請保證貨物不受潮。
She really wishes her clock had rung.
她真希望今天早上她的鬧鐘響了。