Requirement of Exchange; Types of Exchange交换要素；交换的种类 (1) To constitute consideration, a performance or return promise must be bargained for.
双语例句
1
The Committee on Financial Services removed the exchange-trading requirement (but may backtrack); the Agriculture Committee diluted the definition of an exchange.
金融服务委员会撤销了在交易所交易的必要条件（但可能会再加上来）；农业委员会则放宽了对交易所的定义。
2
It has met the requirementof Clause 8 of the Agreement of the International Monetary Fund three years ahead of time by having realized free exchange of the RMB under current account.
这符合三年前国际货币基金组织协议第8条的要求，即实现人民币在经常帐户下的自由兑换。
3
Flexible and easy data exchange for test requirement is critical to the open of ATS (Automatic test System).