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？
What will you do to help protect our environment from being seriously polluted?
你将为帮助保护我们的环境免遭到污染做些什么呢？
What time would be good for you?
什么时间你合适呢？