木星的卫星木卫一全是岩石，其密度为每立方厘米3.5克。
Jupiter's moon Io, whose density is 3.5 grams per cubic centimetre, is all rock.
维克凭借自身努力成为了足球队中最快的四分卫。
Vick carved out his niche as the fastest quarterback in American football.
弗拉基米尔·波兹尼亚克是世卫组织药物滥用管理协调员。
Vladimir Poznyak is the WHO Management of Substance Abuse Coordinator.
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