Richet's canal
[医] 里歇氏管(脐静脉管)
🧩 词语组成解析
🗣️ 情景例句
I've been saving them for today.
我一直留着等今天才戴。
Who swims in sin shall sink in sorrow.
在罪恶中游泳的人，必将在悲哀中沈没。
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。