Every country makes policy decisions of many sorts every week, many of which can be expected to have an indirect effect on the exchange rate in one direction or the other. The mere fact that a particular policy might weaken the currency does not make that country a manipulator.
但中国将一部分储蓄用作海外投资绝对是明智又合法的。（如果中国和其他国家不愿意购买美国资产，美国又要担心了。）每个国家每个星期都要做出各种各样的政策决定，其中许多决定必然会对汇率造成某个方向上的间接影响。某项政策可能导致货币贬值，光凭这一事实绝对无法判定某国是货币操纵国。