Polyadenylic acid
多（聚）腺苷酸
🧩 词语组成解析
🗣️ 情景例句
What would you like?
你想要什么？
Speak well of your friend, of your enemy say nothing.
要赞美朋友，莫提及敌人。
What's the basis of your belief that the product is safe?
你凭什么相信产品是安全的？