Ennead
n. 九个一组
🗣️ 情景例句
What power options are available? ( steering, brakes, windows.... )
（这种汽车）有中控系统吗？
Do you speak English?
你说英语吗？
Forty-two years later a tunnel was actually begun.
42年以后，隧道实际已经开始建了。