P-r
abbr. Pennsylvania-Reading Seashore Lines 宾夕法尼亚-雷丁海岸线线路
🗣️ 情景例句
And me?
我呢？
They feel uneasy.
他们因不安而没法镇定下来。
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。