您要查找的是不是：
- I have a crush on the new girl and cannot concentrate in class. 我喜欢上了新来的女孩,连上课都不能集中注意力。
- He slept badly at night and couldn't concentrate in class at daytime. 他夜里睡不好, 白天上课时思想开小差。
- Rachel couldn't concentrate in class as she had a crush on her "dreamy" history professor. 瑞秋眼中只有她的“梦中情人”历史教授,根本没法专心上课嘛。
- Fang couldn't concentrate in class as she had a crush on her"dreamy"history professor. 芳眼中只有她的“梦中情人”历史教授，根本没法专心上课嘛。
- Rachel couldn't concentrate in class as she had a crush on her “dreamy” history professor. 瑞秋眼中只有她的“梦中情人”历史教授，根本没法专心上课嘛。
- The result was that I found it hard to concentrate in class;felt exhausted and uttered yawns time and time again. 结果，我发现自己在课堂上难以集中精力，感到筋疲力尽，还不时地打呵欠。
- I intend to memorise vocabularies for half an hour every morning, concentrate in class, and do my homework properly at home. 我将在每天早上背半小时英语单词，并且上课我将认真听讲，然后回家我将认真做作业。
- She got cold feet when asked to recite in class. 当她被叫起来在班上背诵时害怕了。
- She was kept in for an hour for talking in class. 她因上课说话被罚留校一小时。
- In class he descanted on his favorite writer. 课堂上他详细论述了自己喜爱的作家。
- Tony used no reference books in class. 托尼上课时不使用参考书。
- Most students were not attending in class. 大多数的学生在上课中没有用心。
- For homework you can write up the rough notes you made in class. 把课堂上记的笔记草稿整理成文作为家庭作业。
- The teacher told the children to stop chattering in class. 老师叫孩子们在课堂上不要叽叽喳喳讲话。
- Students should take notes in class. 学生在课堂上应该记笔记。
- Students should make notes in class. 学生在课堂上应该记笔记。
- People concentrate in cities not only to get jobs but to take advantage of cultural facilities. 人们聚集在城市不仅是为就业，而且是为享用文化设施。
- Children who talk too much in class get under the teacher's skin. 班长随便说话的孩子闹得老师不安宁。
- Birds concentrate in place where food is abundant. 鸟聚集在食物丰盛的地方。
- It turned out Phelps has attention deficit hyperactivity disorder (ADHD), and while it made concentrating in class difficult, racing in the pool was a different story. 但别看他在上课时老是心神恍惚，跳进泳池可就是另一回事了。
