基本解释[经济学]常规交易英汉例句双语例句But many complex derivatives, such as mortgage-backed securities, do not trade smoothly and frequently in arm's length markets.可是有许多复杂的衍生品，比如抵押贷款证券，在和我们有着一定距离的市场中，进行着既不平稳又不频繁的交易。arm's length trade更多例句词组短语短语Arm 's length trade 常规交易arm 's-length trade flows 正常的交易流量arm's length trade更多词组专业释义经济学常规交易