Cationgen
阳离子发生物
🗣️ 情景例句
If you had to describe the book in one sentence,
假如要你用一句话来描述这本书，
The offer is made without engagement. All orders will be subject to our written acceptance.
此报盘没有约束力，所有定单以我方书面接受为准。
He dreaded having to spend Christmas in hospital.
他十分害怕在医院过圣诞。