【英语时差8,16】新陈代谢（下）

 In order to build tissue and repair it, however, anabolism¹ requires energy, as well as material with which to build. This energy and building material comes from the breaking down of larger, more complex material, a process called catabolism. As well as producing energy and building material, catabolism also breaks down material for excretion from the body. Both anabolism and catabolism are necessary for survival² and good health Understanding these processes can help one make good decisions about exercise and diet. For example, when an athlete trains her muscles, her muscle fibers³ break down. However, the daily recommended amount of protein is all that is needed to meet the anabolic and catabolic needs of the body and thus repair muscles fibers.

1 anabolism   

n.合成代谢

参考例句：

• Many surgical complications and disease processes inhibit normal nitrogen anabolism.许多外科并发症和疾病抑制正常的氮合成代谢。
• A continuously open wound inhibits anabolism.持续存在的开放伤口，会抑制合成代谢。

2 survival   

n.留住生命，生存，残存，幸存者

参考例句：

• The doctor told my wife I had a fifty-fifty chance of survival.医生告诉我的妻子，说我活下去的可能性只有50%。
• The old man was a survival of a past age.这位老人是上一代的遗老。

3 fibers   

光纤( fiber的名词复数 )； （织物的）质地； 纤维，纤维物质

参考例句：

• Thesolution of collagen-PVA was wet spined with the sodium sulfate as coagulant and collagen-PVA composite fibers were prepared. 在此基础上，以硫酸钠为凝固剂，对胶原-PVA共混溶液进行湿法纺丝，制备了胶原-PVA复合纤维。
• Sympathetic fibers are distributed to all regions of the heart. 交感神经纤维分布于心脏的所有部分。