Language points
1.It is nice to look back on my schoolday in the countryside. look back on (upon) / look back to 回顾;回
我的爷爷奶奶总
My grandparents often look back on their bitter life in the old society.
2nd-Detailed points:
知识链接:look for look up look intolook forward to look down look down on
寻找;向上看;尊敬;仰视; (在词典、参考


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