Students who would never raise their hand in a classroom often become prolific contributors to class discussions when given the opportunity to submit their comments electronically.
如果人们有机会在网上发表自己的看法，那么上课从来不举手的学生通常会变成课堂讨论中最积极的人。
According to the Copenhagen Accord, parties concerned should submit commitment to combating climate change at the end of this month. When will China hand in such commitment?
根据《哥本哈根协议》，有关各方应在本月末之前提交应对气候变化的相关承诺，中方将于何时提交承诺？
Each group should also submit a final memorandum (3-5 pages as a target, possibly with a technical appendix) to accompany the presentation and to hand in.
每个小组还要提交一个最终的备忘录(3 - 5页，最好是有一个技术附录)并交上来。
When housing normal damage, the applicant shall submit timely reports for housing family by housing building maintenance management department home maintenance, hand in this family continue to use.
当住房正常损坏时，须由住房家庭及时报由住房建筑维护管理部门上门维护，交该家庭继续使用。
When housing normal damage, the applicant shall submit timely reports for housing family by housing building maintenance management department home maintenance, hand in this family continue to use.
当住房正常损坏时，须由住房家庭及时报由住房建筑维护管理部门上门维护，交该家庭继续使用。
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