secure 安全的 income 收入 employ 雇佣;利用(时间、精力等)harm n.&vt.损害;危害 bite 叮;咬;刺痛 extinction 灭绝;消亡 dinosaur 恐龙 come into being 形成;产生 county n.县;郡 inspect 检查;视察 unexpected
1.人教版高中英语必修一课文 A Night the Earth didn't Sleep Strange things were happening in the countryside of northeast Hebei. For three days the water in the village wells rose and fell, rose and fell. Farmers noti