Cgmp
[化] 环鸟苷酸
🗣️ 情景例句
No, I didn't.
没有。
It's raining.
外面下着雨。
Look, the falling leaves are all yellow. Lots of fallen leaves make the road yellow.
看那飘零的落叶，都是黄色的，黄色的落叶铺满的路面。