（一）Two friends are going through the forest( 森林), one friend says to the other, "If anybeast(野兽) comes out from behind the trees, I will stay with you and help you. “Theother friend says, “I will help you too, if any beast comes near you.” After a little timethere is a great nois...

时间:2025-01-27 04:11栏目:行业资料