Valoneaic acid dilactone
[化] 橡┥酸二内酯
🧩 词语组成解析
[机] 二内酯
🗣️ 情景例句
What are you doing up this late?
这么晚你不睡在干什么？
My head has been hurting.
我头痛。
Mrs.Rumbold was a large, unsmiling lady in a tight black dress.
兰伯尔德夫人是一位身材高大、表情严肃的女人，穿一件紧身的黑衣服。