Pneunatic perforator
[机] 气钻
🧩 词语组成解析
[机] 气力缝锤; 空气的, 气脏的, 空气作的
perforator
['pɜ:fəreɪtə]
n. 穿孔器，穿孔员;凿孔机;
🗣️ 情景例句
I could probably tell what it requires to fix it up.
我大致能说出修复它需要些什么。
I'm ill today.
今天我生病了。
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。