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The dogs have greater freedom, too, for they are allowed to wander outside their enclosure.

狗也比較自由，被放出圍欄，四處遛達。

It was true that he had just bought a lamb, he explained, but his lamb was black.

不錯，他的確剛買了一只羔羊，阿列科解釋說，但他的羔羊是黑色的。

for advertising exerts a subtle influence on us.

這是因為廣告在我們身上施加著一種潛移默化的影響。

a moment later, he ran after me and thrust the pen into my hands.

一會兒，他突然從后追了上來，把筆塞到我手里。

You never have to travel miles to see your friends.

你去看朋友根本不用跋涉好幾英里，

However, there is an even more insidious kind of pollution that particularly affects urban areas and invades our daily lives, and that is noise.

但是，還有一種更加隱蔽有害的污染，它專門影響城鎮地區，侵襲我們的日常生活，那就是噪音。