Chumminess
n. 亲密无间；友好
📖 牛津释义
chumminess
n [U].
🗣️ 情景例句
I'm wiped out by the time I get off work.
下班时，我都累趴下了。
When I left, he was at home.
当我离开的时候，他回家了。
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。