Precipitogen
[医] 沉淀原, 沉淀素原
🗣️ 情景例句
A community center
一个社区中心
Saturday the whole family will clean out the garage.
周六全家动员打扫车库。
One of the most famous sailing ships of the nineteenth century, the Cutty Sark, can still be seen at Greewich.
人们在格林威治仍可看到19世纪最有名的帆船之一“卡蒂萨克”号。