Heptavalent
a. 七价的
🗣️ 情景例句
How can I refuse when you look at me like that?
你那样子看我，叫我怎么拒绝啊？
Many receive advice only the wise profit by it.
聆忠言者众，智者独获益。
Yes, please.
好的，来点儿吧。