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1. CJCS is a popular online platform for students to exchange ideas and collaborate.
CJCS是一个受欢迎的在线平台，供学生交换想法和协作。
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2. The CJCS team has been working on developing new software for the past few months.
CJCS团队在过去几个月一直在开发新的软件。
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3. I've been using CJCS for grading my students' assignments, and it's been very helpful.
我一直在使用CJCS来批改我学生的作业，它非常有帮助。