Serious illness
大学 College[法] 重病
🧩 词语组成解析
serious
['sɪrɪəs]
adj. 严肃的，严重的;认真的，庄重的;重要的;危险的;
🗣️ 情景例句
Dreadful weather, don't you think?
天气可真差劲，你说呢？
Constant dropping wears the stone.
滴水不绝可穿石。
and found our then prevailing primitive state completely uninteresting to their own advanced knowledge.
并且发现我们地球当时普遍存在着的原始状态同他们先进的知识相比是索然无味的。