Arcadia
n. 世外桃源；阿卡狄亚（古希腊一山区, 人情淳朴, 生活愉快）
🗣️ 情景例句
And in this family.
也在这个家 。
I don't think that's at all funny.
我觉得那件事一点也不好笑。
Once the existence of this wave-length had been discovered,
一旦这种波长的实际存在被发现，