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

Still, violent crime is largely perpetrated by young men and high testosterone is a factor in their reckless conduct that we ignore at our peril.

尽管如此，暴力犯罪的行为主要由青年男子进行，高睾酮是他们做出鲁莽行为的一个主要因素，我们经常忽视这种因素。

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

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