Formazane
甲
??? 情景例句
Yes, he's my brother.
是的。他是我哥哥。
A friend is not so soon gotten as lost.
交友慢，失友快。
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，在和外星人聯系中我們遇到的最大困難是分隔我們的天文距離。