【注意】asleep 是形容词,而sleep是动词。
assistant[E5sistEnt] n. 助手,助理:My assistant will come to meet you.我的助手将来和你见面。/ What is the laboratory assistant doing? I seldom can find him. 实验室助理员在忙什么?我很少能找到他。
at[Et] prep. 在:He left his textbook at home. 他把课本忘在了家里。/ At eight o’clock I will go to the movies. 在8点钟时我要去看电影。
【短语】at all (用于否定句)一点也不:He didn’t like it at all. 他根本不喜欢它。at breakfast 早餐时:At breakfast, mother has already prepared for lunch. 早餐的时候,妈妈已经为中餐做好了准备。at home 在家:In winter holiday I would rather stay at home than go out. 寒假我宁愿呆在家里也不出去。at least 至少,起码:The book has 400 pages at least. 这本书至少有400页。at midnight 在半夜:At midnight I had a nightmare.半夜我做了一个噩梦。at night 在晚上,在夜里:He went to evening school at night. 晚上他去上过夜校。at school 在学校:We don’t stay at school at the weekends. 周末我们不呆在学校。at sea 在大海上:A ship is sailing at sea. 一艘轮船在大海上航行。at the age of 在……岁时:At the age of 10 he had already entered the middle school. 他10岁就上了初中。at the beginning of 开始;……起初:At the beginning of football game, our class got 2 scores。足球赛刚开始我们班就进了两个球。at the end of 在……结尾,到……尽头:At the end of street, there is a bar. 街的尽头有一家酒吧。at the head of 在……的前头:At the head of classroom there is a blackboard and platform. 教室的前面是黑板和讲台。at the moment 此刻:I’m afraid she’s busy at the moment. 很抱歉,她现在很忙。at the same time 同时:I can’t think about more than one thing at the same time. 我不能一心二用。at times 有时,偶尔:He laughs at me at times. 他有时会嘲笑我。
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