concentration
「concentration」的意思
n. 专心，专注；关注，重视；集中，聚集；含量，浓度
n.集中,集合,专心,浓缩,浓度
「concentration」的用法
concentration集中；专注 - 在学习时保持高度的集中力。
「concentration」的例句
She is concentrating on her homework.
她正在专心做作业。
He needs to concentrate on his studies.
他需要专心学习。
The teacher asked the students to concentrate during the lesson.
老师要求学生在上课时专心。
He is concentrating all his efforts on the project.
他正全身心地投入到项目中。
She was concentrating on her phone call when the doorbell rang.
她正在专心打电话时，门铃响了。
The students need to concentrate during the exam.
学生们在考试时需要专心。
He is concentrating on improving his public speaking skills.
他正在努力提高自己的演讲技巧。
The athlete needs to concentrate during the race.
运动员在比赛中需要集中注意力。
She was concentrating on her book when her friend came in.
她正专心看书时，朋友进来了。
He needs to concentrate on his health and exercise regularly.
他需要专注于健康和定期锻炼。