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
I can't wait to tell Richard!
我简直迫不及待想告诉Richard！
To play the guitar
弹吉他
but each year, the dogs are still sent out into the snow whenever a traveller is in difficulty.
但每年还要派狗到雪山地里去帮助那些遇到困难的旅游者，