Materies peccans
[医] 致病物质
🧩 词语组成解析
[医] 物质
🗣️ 情景例句
Good afternoon, Mr. Chen. Thank you very much.
下午好，陈先生。非常感谢。
The friar preached against stealing and had a goose in his sleeve.
嘴上真君子，行动烂小人。
Not to grasp firmly is not to grasp at all.
抓而不紧等于不抓。