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緊張， きんちょう

1. tension, strain, nervousness, stress 2. tensions (between countries, groups, etc.) 3. tonus, muscle tone

紧张、压力、焦虑；紧张关系（国家之间、群体之间等）

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心臓病， しんぞうびょう

1. heart disease, heart trouble, cardiopathy

tbd

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原因， げんいん， げいいん

1. cause, origin, source

原因

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が

1. indicates the subject of a sentence 2. indicates possession 3. but, however, (and) yet, though, although, while 4. and 5. used after an introductory remark or explanation 6. regardless of ..., whether ... (or not), no matter ... 7. indicates a des...

tbd

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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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だ

1. be, is

断定助动词，是，是也

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