Polypak
苯乙烯、二乙烯苯共聚物
🗣️ 情景例句
Take me to the railway station.
载我到火车站。
I bought 3 pounds of flour.
我买了三磅面粉。
and since most medical men in the Health Services are overworked and have little time for offering time-consuming and little-appreciated advice on such subjects as diet,
因为卫生部门的大多数医生都超负荷工作，所以没有多少时间提出一些既费时而又不受人欢迎的忠告，如注意饮食、