Deletery
有害的或有毒的物品
🗣️ 情景例句
She's enthusiastic about the new teaching method.
她对新的教学方法很热心。
If the beard were all, the goat might preach.
如果有了需就什么都行，那么山羊也可以说教了。
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。