keep up
动词- To maintain; to preserve; to prevent from deteriorating or falling.
- To continue with (work, etc). · Keep up the good work, team!
- To maintain position; to prevent oneself from falling behind; to stay even or ahead of another while walking, driving, etc. · They ran so fast I could hardly keep up.
- To ensure that one remains well-informed about something. · I always try to keep up with (or "keep up on") current affairs.
- To prevent someone from going to bed or to sleep · The crying baby kept me up all night
来自图书馆
Like most quiet folks he liked talkative people when they were willing to do the talking themselves and did not expect him to keep up his end of it.
But this freckled witch was very different, and although he found it rather difficult for his slower intelligence to keep up with her brisk mental processes he thought that he “kind of liked her chatter.” So he said as shyly as usual:
“You know we keep up the old custom.
You are going to keep up your studies, aren’t you?
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