Besredka's reaction
[医] 别兹列德卡氏反应(结核病补体结合试验)
🧩 词语组成解析
🗣️ 情景例句
At four o'clock,
四点钟，
I'm afraid I don't know. Let me ask the supervisor in this section.
恐怕我不知道，让我来询问一下该组的负责人。
When is the most convenient time for you?
你什么时候最方便？