P. t. o.
[医] 牛结核菌素
🧩 词语组成解析
[医] 颞的
[医] O型, 菌体型, 不动型(细菌)
🗣️ 情景例句
He's been here for years, he should know the ins and outs of the job by now.
他在这里已经好多年，现在理应熟悉各方面的工作了。
He who would climb the ladder must begin at the bottom.
爬梯必须从底层开始。
In the light of this statement, teachers live by selling knowledge,
根据这种说法，教师靠卖知识为生，哲学家靠卖智慧为生，