Filtros
[医] 硅沙人造石(处理污水用)
🗣️ 情景例句
Let's do lunch sometime.
什么时候我们一起吃午饭吧。
What time does the plane take off?
飞机何时起飞呢？
may have left an automatic messenger behind to await the possible awakening of an advanced civilization.
很可能会在离开太阳系时留下自动化信息装置，等待先进文明的觉醒。