◆to kill yourself
(commit suicide)自杀
He killed himself after suffering from depression for many years.他患抑郁症多年后自杀了。
<非正式>(overexert yourself)拼老命；竭尽全力
He certainly hasn't been killing himself.他显然一直都没有拼命干。
He didn't exactly kill himself to get here on time.他确实没费多大劲儿就准时赶到这里。