Unartificial
a. 非人工的, 自然的
🗣️ 情景例句
I think I can stay at home
我觉得我可以待在家
My mountain is higher than your molehill.
我的山要比你的丘陵高。
But here we come up against the most difficult of all obstacles to contact with people on other planets ----the astronomical distances which separate us.
然而，在和外星人联系中我们遇到的最大困难是分隔我们的天文距离。