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An electric razor that meets the European Union's safety standards must be approved by American testers before it can be sold in the United States,

一把符合歐洲聯盟安全標準的電動剃須刀必須得到美國檢測人員的認可，方可在美國市場上銷售；

is to make your interests gradually wider and more impersonal,

就是逐漸使自己的興趣更加廣泛，逐漸擺脫個人狹小的圈子，

In fact a basic amount of movement occurs during sleep which is specifically concerned with preventing muscle inactivity.

事實上，睡眠狀態下仍有著基本的活動量，以防止肌肉活動停止。

It was the idea of supporting a craft on a 'pad',or cushion, of low-pressure air, ringed with a curtain of higher pressure air.

用一個氣墊來支撐船體，低壓空或軟墊，軟墊周圍用高壓空氣環繞。

The old view of Galileo was delightfully uncomplicated.

令人高興的是，過去對伽利略的看法并不復雜。

gravity is the force that drives them in a continual attempt to restore the ocean surface to a flat plain.

地球引力是持續不斷企圖使海面復原為平面的力量。