Brachistochrone
n. [数]最速降线,捷线
🗣️ 情景例句
You and Robbie and me.
你 ，Robbie和我。
That's 9:26 on Track 16.
9点26分，16轨道。
It was not that I actually remembered anything at all.
这倒并非是我背熟了地图，