to involve a loss of life; to result in a fatal accident or a homicide

Describes a situation or case that involves human life and is therefore of the utmost importance or urgency

(idiom) to treat human life like weeds (the character [[菅|菅|jian1]] refers to a type of wild grass); to kill people or treat their lives with utter indifference

to have one's life hanging by a thread; close to death; used to describe someone whose remaining days are few

(idiom) to treat human life as though it were as worthless as weeds; to have utter disregard for human life