Rickett's organism
[医] 立克次氏体
🧩 词语组成解析
🗣️ 情景例句
But first things first.
但事有先后。
Let me congratulate you on your success.
祝贺您的成功。
'We're going back now,' said the conductor.
“我们现在要返回去，”售票员说。