Ceanothic acid
[化] 美洲茶酸
🧩 词语组成解析
🗣️ 情景例句
Look, this way. Yes, that's right. Now let's try some of this chicken.
请看，这样。对，完全正确。来吃点鸡肉。
How many years have you been playing pingpong?
你打乒乓球多少年了？
How much is the pen?
这支笔多少钱？