| 单词 | 有选择 |
| 释义 | 〔upgrade〕To improve the quality of (livestock) by selective breeding for desired characteristics.改善品质，改良品种：通过为得到所希望的特征而进行的有选择的交配而改善（牲畜）的品质〔genius〕has a genius for choosing the right words.有选择正确单词的天赋〔coterie〕A small, often select group of persons who associate with one another frequently.See Synonyms at circle 小圈人：通常是有选择的一小伙人，他们之间经常聚会 参见 circle〔method〕"The convention system has its faults, of course, but I do not know of a better method for choosing a presidential nominee" (Harry S Truman).“传统的一套当然有它的缺点，但我并不认为有选择一个总统提名人的更好的办法” （哈利·S·杜鲁门）。〔room〕allowed the chef leeway in choosing the menu;允许厨师有选择菜单的自由；〔radiotherapy〕Treatment of disease with radiation, especially by selective irradiation with x-rays or other ionizing radiation and by ingestion of radioisotopes.放射疗法：用放射进行的疾病治疗，尤指用X射线或其它电离辐射的有选择放射和吞下放射性同位素〔dialysis〕The separation of smaller molecules from larger molecules or of dissolved substances from colloidal particles in a solution by selective diffusion through a semipermeable membrane.渗析：借助半透膜通过有选择的扩散把较小分子从大分子中的分离，或者把溶解的物质从溶液胶态颗粒中的分离 |
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