Nonorientable
不可定向的
🗣️ 情景例句
The children's performances brought down the house.
孩子们的演出博得满场喝彩。
Did you have a good day today?
你今天过得好吗？
Work on it had begun before my sister left.
这栋房子在我姐姐离开之前就已动工了，