Pneumococci
肺炎双球菌
🗣️ 情景例句
Why are you in such a good mood?
为什么你的心情那么好？
I must apologize for his unusual behavior.
我必须为他怪诞的行为致歉。
The child learning to see, first distinguishes only two-dimensional shape;
正在学看东西的儿童起初只会分辨二维形态，