Materies peccans
[医] 致病物质
🧩 词语组成解析
[医] 物质
🗣️ 情景例句
Who's bringing the booze?
谁带的酒？
Have you send him any pencils?
你送他铅笔吗？
He has asked to be introduced to the pianist.
他要求会见这位钢琴家。