一些钥匙在7E教室,英语是:Some keys are in the 7E classroom.我必须找到他,英语是:I have to find him.详细解释key 英[ki:] 美[ki] n. 钥匙; (打字机等的) 键; 关键,线索,秘诀; (音乐的) 调; vt. 键入; 锁上; 调节…的音调; 提供线索; vi. 使用钥匙; [例句]They put the key in the door and entered他们用钥匙打开门进去了。classroom 英[ˈklɑ:sru:m] 美[ˈklæsru:m] n. 教室,课堂; 教学活动,教学方法; [例句]Students learned the practical application of the theory they had learned in the classroom学生们学会了将课堂上学到的理论付诸实际应用。find 英[faɪnd] 美[faɪnd] v. 找到; 发现; 查明; 发觉; n. 发现物; 被发现的人; [例句]The police also found a pistol警方还发现了一把手枪。