Both Aldrin and Chlordane are valuable insecticides.艾氏剂和氯丹都是重要的杀虫剂.Mercury, polychlorinated biphenyls ( PCBs ) and chlordane are among the major contaminants found in Illinois fish.水银, 多氯联苯和氯丹是在伊利诺依州的鱼类中发现的主要污染物.To explo...
非法套汇的其他行为.Other acts of illegal foreign exchange arbitrage.讨论了避免套汇兑换率矩阵必须是正互反矩阵的结论, 以及给出了兑换率矩阵调整为正互反矩阵的方法.In order to avoid arbitrage, the rate matrix of exchange must be a positive reciprocal matrix.即使套汇交易出现, 也会被一些专业的交易...
Practice makes perfect.熟能生巧In practice, workers do not work to satisfy their needs.事实上，工人工作并不是为了满足本身的需要。Knowledge begins with practice.知识始于实践。All members of the association adhere to a strict code of practice...协会的所有成员都遵...
Cecile was in her early thirties, a sometime actress, dancer and singer.塞茜尔三十出头，曾经做过演员、舞蹈演员和歌手。I'm aiming to get to work by nine sometime.我准备9点左右开始工作。Steel cans were introduced sometime during the forties.钢罐是20世纪40年...