Petrox
石油氧化物
🗣️ 情景例句
Why did you stop working?
你为什么要退休？
How long has it been since you've heard from your uncle?
自从你听到叔叔的消息有多长时间了？
'The strap needs mending,' said Mrs.Sterling later, 'but they did not steal anything.'
“这提包带需要修理，”斯特林夫人事后说道，“不过他们什么也没偷走。”