Poid
形心(曲线), 拟正弦线, 膺正弦线, 瞬心轨迹
🗣️ 情景例句
How come you speak such good English?
你为什么能说这么好的英语呢？
It'll be easier for us to get down to facts then.
这样就容易进行实质性的谈判了。
Don't look at me like that.
别那样看着我。