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おばあちゃん， お婆ちゃん， お祖母ちゃん
1. granny, grandma, gran
2. old lady, old woman
tbd
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農家， のうか
1. farmer, farming family
2. farmhouse
3. School of Agrarianism (China), School of Agronomists
农民，务农家庭；农舍
は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题；表示与另一选项（无论是否明确提及）形成对比；表示强调
