Tetanthrene
四氢化菲
🗣️ 情景例句
Hi, girls.
嗨 ，女孩们好。
My grandma is 40 years older than me.
我祖母比我大40岁。
He was sent to prison for failing to pay his debts and died in poverty in 1836.
他因无力还债而被捕入狱，最后于1836年在贫困中死去。