完善自已
教学大纲 [拼音]:jiào xué dà ɡānɡ [解释]:instructional program; teaching program; academic program; syllabi ; syllabus; 1.a teaching program; a syllabus [参考词典]:汉英综合大词典 汉英综合科技大辞典 汉英综合大词典 汉英经贸大词典 汉英航海大词典 汉英综合大词典

开运潇潇
Discuss the importance of the role of smile in making life better. Discuss the different tips and reasons that can make people smile. Discuss their experience of situation in which a simple smile solved his/her problem.
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