立彬の日本語
科学と芸術は人類の幸福の増進に貢献しなければならない。
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Science and art must contribute to the promotion of human welfare.
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科学， かがく
1. science
2. to think about scientifically, to think in terms of science
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芸術， 藝術， げいじゅつ
1. art, the arts
艺术
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人類， じんるい
1. mankind, humanity
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幸福， こうふく
1. happiness, well-being, joy, welfare, blessedness
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増進， ぞうしん
1. promoting, increase, advance
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貢献， こうけん
1. contribution (furthering a goal or cause), services (to a cause)
2. paying tribute, tribute
贡献
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なければならない， なければなりません， なければいけない
1. have to do, must, should, ought to
必须，应该
と
1. if, when
2. and
3. with
4. used for quoting (thoughts, speech, etc.)
5. promoted pawn
6. indicates a question
表示引用
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
に
1. at (place, time), in, on, during
2. to (direction, state), toward, into
3. for (purpose)
4. because of (reason), for, with
5. by, from
6. as (i.e. in the role of)
7. per, in, for, a (e.g. "once a month")
8. and, in addition to
9. if, although
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