at one's discretion 自行处理 ; 任从
act at one's discretion 便宜行事
nact at one's discretion 便宜行事
proceed at one's discretion 酌办
exercised at one's own discretion 自主决定的
at one's sole discretion 自行决定
Do At One's Own Discretion 直情径行
Since it is not uttered at one's own discretion, it cannot be called a practice.
因为它并不是经过斟酌才表达，它无法被称为是练习。
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