Example : It was made quite clear to me that if I stepped out of line again I'd be out of a job Run yourself into the ground - to make yourself very tired by working too hard | | Example : We ran ourselves into the ground to meet the July deadline. | | | | High gear - A state of maximum activity, energy, or force. | | Example : The political campaign is finally moving into high gear. | |
Fill in - to do someone else's work for them because they cannot or will not do it themselves | | Example : Volunteers would fill in for teachers in the event of a strike. | | | |
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