76. The beaver chews down trees to get food and material with which to build its home.
76.水獺啃倒樹(shù)木，以便取食物并獲得造窩的材料。
77. Poodles were once used as retrievers in duck hunting, but the American Kennel Club does not consider them sporting dogs because they are now primarily kept as pets.
77.長(zhǎng)卷毛狗曾被用作獵鴨時(shí)叼回獵物的獵犬，但是美國(guó)Kennel Club卻不承認(rèn)它們?yōu)楂C犬，因?yàn)樗鼈儸F(xiàn)在大多數(shù)作為寵物飼養(yǎng)。
78. As a result of what is now know in physics and chemistry, scientists have been able to make important discoveries in biology and medicine.
78.物理學(xué)和化學(xué)的一個(gè)成果是使得科學(xué)家們能在生物學(xué)和醫(yī)學(xué)上獲得重大發(fā)現(xiàn)。
79. The practice of making excellent films based on rather obscure novels has been going on so long in the United States as to constitute a tradition.
79.根據(jù)默默無(wú)聞的小說(shuō)制作優(yōu)秀影片在美國(guó)由來(lái)已久，已經(jīng)成為傳統(tǒng)。
80. Since the consumer considers the best fruit to be that which is the most attractive, the grower must provide products that satisfy the discerning eye.
80.因?yàn)轭櫩驼J(rèn)為的水果應(yīng)該看起來(lái)也是最漂亮的，所以種植者必須提供能滿足挑剔眼光的產(chǎn)品。
76.水獺啃倒樹(shù)木，以便取食物并獲得造窩的材料。
77. Poodles were once used as retrievers in duck hunting, but the American Kennel Club does not consider them sporting dogs because they are now primarily kept as pets.
77.長(zhǎng)卷毛狗曾被用作獵鴨時(shí)叼回獵物的獵犬，但是美國(guó)Kennel Club卻不承認(rèn)它們?yōu)楂C犬，因?yàn)樗鼈儸F(xiàn)在大多數(shù)作為寵物飼養(yǎng)。
78. As a result of what is now know in physics and chemistry, scientists have been able to make important discoveries in biology and medicine.
78.物理學(xué)和化學(xué)的一個(gè)成果是使得科學(xué)家們能在生物學(xué)和醫(yī)學(xué)上獲得重大發(fā)現(xiàn)。
79. The practice of making excellent films based on rather obscure novels has been going on so long in the United States as to constitute a tradition.
79.根據(jù)默默無(wú)聞的小說(shuō)制作優(yōu)秀影片在美國(guó)由來(lái)已久，已經(jīng)成為傳統(tǒng)。
80. Since the consumer considers the best fruit to be that which is the most attractive, the grower must provide products that satisfy the discerning eye.
80.因?yàn)轭櫩驼J(rèn)為的水果應(yīng)該看起來(lái)也是最漂亮的，所以種植者必須提供能滿足挑剔眼光的產(chǎn)品。