maintain at

maintain (something) at (something)

To keep something at a particular setting or level. I try to maintain my savings at $1,000, at least, in case of emergencies.
See also: maintain
Farlex Dictionary of Idioms.

maintain something at something

to keep something at a certain level, setting, degree, amount, etc. You must maintain the temperature at 30 degrees Celsius. We have to maintain the temperature at a very high level.
See also: maintain
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • maintain (something) at (something)
  • look to (one's) laurels
  • look to laurels
  • look to one's laurels
  • look to your laurels
  • leave the door open
  • leave the door open for
  • leave the door open for (something or doing something)
  • keep a tight rein on somebody/something
  • keep a tight rein on someone/something