Old tyberculin
[医] 旧结核菌素
🧩 词语组成解析
old
[old]
adj. 老的;古老的;以前的;（用于指称被替代的东西）原来的;
n. 古时;
[医] 结核菌素
🗣️ 情景例句
Is room service available?
有房间服务吗？
How many of these are you going to send him?
你要送多少给他？
He will be earning only half as much as he used to,
他将来挣的钱只有他现在的一半。