In lieu of abstract, first paragraph reads: Six months after the author derived a constant of motion for a 1D damped harmonic oscillator [1], a similar result appeared by Liu, Madhavan, and Tegmark [2, 3], without citing the author. However, their derivation contained six serious errors, causing both their method and result to be incorrect. In this Comment, those errors are reviewed.

翻译：代替摘要，首段内容如下：在作者推导出一维阻尼谐振子的运动常数六年后[1]，Liu、Madhavan和Tegmark发表了类似结果[2, 3]，但未引用作者的工作。然而，他们的推导包含六处严重错误，导致其方法与结论均不正确。本评论将逐一审视这些错误。