Riccitensor
缩并的曲率张量
🗣️ 情景例句
If it sounds like an interesting place to visit, that's because it is.
如果它听起来像是个有趣的地方，那是因为它的确是这样。
Apothecaries would not sugar their pills unless they were bitter.
好药不苦不会加糖衣。
My sister is only seven, but she always tells me whether my pictures are good or not.
我的妹妹只有7岁，但她总能说出我的画是好还是坏。