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本気， ほんき
1. seriousness, earnestness, truth, sanctity
严肃性，认真态度，真实
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はずがない， 筈がない
1. it cannot be that ..., it is highly unlikely that ..., it is impossible that ...
tbd
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