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疑い深い， うたがいぶかい
1. doubting, distrustful, incredulous, suspicious
tbd
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性格， せいかく
1. character (of a person), personality, disposition, nature
2. characteristics, nature (of a thing, event, etc.)
tbd
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
