1．从今以后，我们要更加努力学习英语。(fromnowon)

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2．你应该学会如何与他人相处。(getonwith…)

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3．植树可以防止土壤沙化。(stop…from…)

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4．假如每个人都为保护环境做出自己的贡献，这个世界将变得更加美丽。(makeacontributionto…)

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5．轮到你在会上发言了。(turn)

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