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
の
1. indicates possessive
2. nominalizes verbs and adjectives
3. substitutes for "ga" in subordinate phrases
4. (at sentence-end, falling tone) indicates a confident conclusion
5. (at sentence-end) indicates emotional emphasis
6. (at sentence-end, risi...
句尾起强调作用；助词，表示所有关系
中， なか
1. inside, interior
2. among, within
3. middle, center, centre
4. during, while, middle, midst, amid
5. interval, gap
6. mean, average
7. second (of three, e.g. sons, volumes), middle
8. medium grade, medium quality
9. red-light district
内，内部；中，其中；中，中心；当……，……时，……期间；中等
