Electronic tube
[电] 电子管
🧩 词语组成解析
🗣️ 情景例句
Coming! Coming!
来了， 来了。
Better go to bed supperless than rise in debt.
宁可饿肚子，切莫去借债。
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。