1.Initially, Mead and his colleagues thought that because the variant had never been seen before, it must have damaging rather than beneficial effects.
米德和他的同事起初认为,既然这一变异之前从未发现过,那么它一定具有破坏性而不是相反。
2.The city's main source is Lake Mead, which supplies 85% of the water used in the Las Vegas Valley.
Lake Mead是该市的主要水源,拉斯维加斯85%的用水都是由它提供。
3."Tis garlic!" And I thought there wasn't a blade left in that mead! '!
是大蒜!我原来以为那片草场里一片蒜叶也没有了呢!
4.STANDING on the Hoover Dam and looking upstream at Lake Mead, America's largest reservoir, the visitor notices a wide, white band ringing the cliffs.