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水素， すいそ

1. hydrogen (H)

tbd

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原子， げんし

1. atom

tbd

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番号， ばんごう

1. number, series of digits

数字，一系列的数字

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である

1. be, is

是、=です、=だ

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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

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は

1. indicates sentence topic 2. indicates contrast with another option (stated or unstated) 3. adds emphasis

指示句子的主题

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