Hexacene
[化] 并六苯
🗣️ 情景例句
Then an adult must sign for you.
那就必须有一位成年人来替你签字。
I'm sorry,but both of them are busy right now.
很抱歉他们现在很忙。
I think we are the first people here for hundreds of years. Maybe thousands.
“我认为几百年，可能几千年以来，我们是第一次来这里的人。”