Polytrope
多变性, 多方曲线
🗣️ 情景例句
Can you tell me what time you close?
您能告诉我关门的时间吗？
If it hadn't been for your help, we would never have finished it.
如果没有你的帮助，我们永远完不成任务。
and by measuring the time interval between the taps and the receipt of the echoes, the depth of the sea at that point can be calculated.
测出回声间隔的时间，便可算出该处海洋的深度。