Sinapiscopy
[医] 芥末检觉法
🗣️ 情景例句
I'm afraid I stayed too long.
恐怕我呆得太久了。
To carry dirt
清理垃圾
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。