天冷时，血管会收缩。 天冷時，血管會收縮。 天冷時，血管會收縮。
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- Simplified
- 天冷时，血管会收缩。
- Traditional (Taiwan)
- 天冷時，血管會收縮。
- Pinyin
- Pinyin (Taiwan)
- Bopomofo
Written with HSK 7-9 vocabulary, at CEFR level C1.
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