He may cheat in checkers, but it beats staring at his face all day long.
他可能在下象棋时做手脚,但是只要一整天盯着他的脸看便会获胜了。
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。