Valoneaic acid dilactone
[化] 橡┥酸二内酯
🧩 词语组成解析
[机] 二内酯
🗣️ 情景例句
Hi, there!
你好！
Music is his chief hobby.
音乐是他的主要业余爱好。
He opened it and saw the man from downstairs.
他打开门，看见楼下人。