立彬の日本語
その機械の骨組みは堅くなければならない。
tbd
The frame of the machine should be rigid.
875
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その， そん， 其の
1. that, the
2. part (as in "part two")
3. um ..., er ..., uh ...
那个；部分（如“第二部分”）
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機械， 器械， きかい
1. machine, mechanism
2. instrument, appliance, apparatus
机器，机械；仪器，设备，家电
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骨組み， 骨組， ほねぐみ
1. skeletal frame, skeleton, build, physique
2. framework, frame, structure
3. outline
骨骼框架、骨骼、体型、体格；框架、结构、框架结构；轮廓
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硬い， 固い， 堅い， 緊い， かたい
1. hard, solid, tough
2. stiff, tight, wooden, unpolished (e.g. writing)
3. strong, firm (not viscous or easily moved)
4. safe, steady, honest, steadfast
5. obstinate, stubborn
6. bookish, formal, stuffy
tbd
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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
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
は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题