地球的水到底從哪裡來的？ (Where Did Earth's Water Come From?)

US /ˈwɔtɚ, ˈwɑtɚ/

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UK /'wɔ:tə(r)/

US /sʌn/

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UK /sʌn/

US /wɪnd/

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UK /wɪnd/

US /aɪs/

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UK /aɪs/