on your last legs
成語所屬單字leg
on your last legs — 慣用語
1. very tired or close to failing, dying, or no longer working.
1.慣用語
釋義
筋疲力盡；瀕臨報廢
very tired or close to failing, dying, or no longer working.
例句
After hiking for twelve hours, the group was on their last legs and desperately needed a rest.