58、 Deep down, they realize that happiness can’t be bought, but it can be given away. 在内心深处,他们认识到幸福是买不来的, 但却可以与人分享。
59、 It is wrong to define happiness as owning a lot of money, but some people take it as their life philosophy. 把幸福定义为有很多钱是错误的，但是有些人却把它奉为人生哲学。
60、 He is rich in terms of money, but not in terms of happiness. 从钱的角度说他是富有的，但从幸福的角度说他不是。
61、 All happy families resemble one another, each unhappy family is unhappy in its own way. —Leo Tolstoy 所有幸福的家庭彼此都很相似，而每个不幸的家庭却各有各的不幸。 ── 托尔斯泰
62、 Unfortunately, there are still some people who do not look after their pets properly or are even cruel to them. 遗憾的是，仍然有一些人对他们的宠物不好好照管甚至虐待它们。
63、 She sat up straight and pretended to believe in herself, so much so that she actually started believing in herself. 她坐直了身子, 假装对自己充满信心, 装得连她自己都开始以为自己确实很有信心。
64、 It’s not easy to keep in touch with friends when they are far away, however, they are always on her mind. 和远方的朋友保持联系不是一件容易的事，但是她一直记挂着他们。
65、 Agriculture will have to undergo a drastic change to meet the needs of the new situation. Otherwise, the country will starve. 农业必须进行深入的改革, 以满足新形势的需要。否则, 国家将遭受饥荒。
66、 In the northern area, it is necessary to plant varieties which are outstandingly resistant to low winter temperature. 北部地区只能种植确实能抗冬季低温的品种。
67、 Synthetic, or man-made, diamonds have been manufactured from carbon since the mid-1950s, when General Electric Co. developed the process for making small diamonds for industrial uses. 人们从20世纪50年代中期就开始用碳来制造或人工合成钻石，当时通用汽车公司开发出了生产工业用小钻石的工艺。
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