A woman with normal vision whose father is color-blind marries a color-blind male. 是我理解錯了還是他爸取了個男的?
What is the probability that this couple's first son will be color-blind?
8zo ●ω●
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形容詞子句吧否則也太驚悚= =
魚悠清流本自在
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害羞人
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哈囉，生日快樂！
蝴蝶姐姐
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有一個女的他爸爸是色盲然後她嫁了一個色盲...這樣?
love121323: you got it.
蝴蝶姐姐
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我盡量克制自己不要想到那方面去..
love121323: 聽起來下過一番苦功= =