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As a result, humans have learned to respect feline independence.

結果是人們已經學會尊重貓的獨立性。

As long ago as the fourteenth century,

早在14世紀，

it is extremely difficult to estimate the true value of the services which people perform for us.

但要估算別人為我們為所提供的服務的價值卻是極其困難的。

There were books, clothing and photographs, together with letters which the seaman had once received from his wife.

其中有書箱、衣服、照片以及水手收到的妻子的來信。

Few things could be more impressive than the peace that descends on deserted city streets at weekends when the thousands that travel to work every day are tucked away in their homes in the country.

周末，當成千上萬進城上班的人回到他們的鄉間寓所之后，空曠的街市籠罩著一種寧靜氣氛，沒有什么能比此時的寧靜更令人難忘了。

Industrialized farming methods produce cheap meat products: beef, pork and chicken.

工業化的農作方式生產出廉價的肉類制品——牛肉、豬肉和雞肉。