Definition
To cease all ongoing activities and immediately stop what one is currently doing.
放下手边事情
When I heard the news, I dropped everything and rushed over to help.
当我听到这个消息时，我放下手边的一切赶去帮忙。
She received a call that her daughter was ill, so she dropped everything and hurried home.
她接到电话说女儿生病了，所以她放下手边的一切赶回家。
Upon hearing the fire alarm, everyone dropped everything and quickly evacuated the building.
听到火警警报时，所有人都放下手边的一切迅速撤离大楼。