Picronitric acid
[化] 苦味酸
🧩 词语组成解析
🗣️ 情景例句
May I take a picture of you and your little boy?
我可以替你和你的小男孩拍一张照吗？
He is studying the ecology of ameba.
他在研究阿米巴
Forty-two years later a tunnel was actually begun.
42年以后，隧道实际已经开始建了。