Poid
形心(曲线), 拟正弦线, 膺正弦线, 瞬心轨迹
🗣️ 情景例句
And this gentleman is my grandfather, Malcolm Stewart.
这位绅士是我祖父Malcolm Stewart。
I envy you.
我羡慕你。
I'm sorry. I didn't know you wanted it. What a shame!
抱歉。我不知道你想要它。真可惜！