Tictactoe
井字棋
🗣️ 情景例句
Hello. This is Richard Stewart.
你好， 我是Richard Stewart。
Could you give me an indication of the price?
您能提供一个参考价吗？
Imagine a pen attached to the weight in such a way that its point rests upon a piece of paper on the floor.
假定把一支笔拴在重物上，笔尖落在地板上的一张纸上，