她发现自己说错了， 连忙改口。
She corrected herself as soon as she found she had made a mistake.
对于口令不应当修改的测试来说，需要进行验证，真正检验没有修改口令。
For tests where a password shouldn't change, verification is required to truly verify an unchanged password.
美国医学协会（ASA）在2007年就曾表示支持这一想法，但几天后却又改口。
The American Medical Association endorsed the idea in 2007, only to backtrack days later.
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