立彬の日本語
実行の伴わない理論は何の役にもたたない。
tbd
Theory without practice will be no use.
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実行， じっこう
1. execution (e.g. of a plan), carrying out, (putting into) practice, action, implementation, fulfillment, realization
2. execution (of a program), run
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伴う， 伴なう， ともなう
1. to accompany, to go hand in hand with, to be consequent upon
2. to be accompanied by, to bring with, to take with, to be involved in
伴随，相伴；陪……，参与……，带……
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理論， りろん
1. theory
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何の役にも立たない， なんの役にも立たない， なんのやくにもたたない
1. of no use whatsoever, good for nothing, useless
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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；表示与另一选项（无论是否明确提及）形成对比；表示强调