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to keep it up
01
to maintain a good performance and continue persevering in one's efforts
![to [keep] it up definition and meaning](https://cdn.langeek.co/photo/42966/original/?type=jpeg "to [keep] it up definition and meaning")
例
The demanding workload is overwhelming, and I'm not sure how much longer I can keep it up.
Maintaining the illusion of enthusiasm at work is a struggle, and I doubt I can keep it up indefinitely.
Keep it up champ!
Keeping it up won't do you much good either.
