高校问答是一部内容开放、自由的互动网络百科全书客观、专业、权威的知识性百科全书
来源:百度文库 编辑:高校问答 时间:2024/04/20 15:02:36
At the moment,students must focus their attentions on their studies.
Right now, students have to focus on studying.
At present, students must focus on their studies.