立彬の日本語
水分子は、２個の水素原子と１個の酸素原子からなる。
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A water molecule has two hydrogen atoms and one oxygen atom.
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分子， ぶんし
1. molecule
2. numerator
3. element (of a group), member
4. particle
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水素， すいそ
1. hydrogen (H)
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原子， げんし
1. atom
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一個， １個， 一箇， 一ヶ， いっこ
1. piece, fragment, one (object)
一个（物件）、一处、部分
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酸素， さんそ
1. oxygen (O)
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からなる， から成る
1. consists of, comprises, is made up of
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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
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
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