By his reckless conduct he inflicted great misery on his parents.

他行为不检使父母遭受很大痛苦。

youdao

"Criminally negligent" means conduct that involves a gross deviation from the standard of care that a reasonable person would exercise under the circumstances, but which is not reckless.

“刑事过失”(Criminally negligent)意为，犯罪行为涉及偏离普通正常人(reasonable person)在当时情形下的注意标准和范围，但是其不是轻率的行为。

youdao

To categorize such conduct with less revolting label of reckless or negligent homicide and also to permit the imposition of lesser penalties than one prescribed for manslaughter.

将这种行为划归不那么令人讨厌的疏 忽大意杀人罪或过失杀人罪，对其施 加比一般杀人罪更轻的处罚。

youdao

Mr McKenzie, 55, was not in court to face the charge of culpable and reckless conduct.

BBC: Dudhope Court

Albanian President Berisha is responding to his domestic woes by becoming more reckless in his conduct of foreign affairs -- notably with respect to the Albanian population of Serbia's Kosovo province, a well-honed technique for diverting attention from difficulties at home.

CENTERFORSECURITYPOLICY: Center For Security Policy

They were likely to be charged with reckless endangerment, while the third was likely to be charged with disorderly conduct.

WSJ: CUNY Students Protest