keep

Higher levels of CO₂ help maintain photosynthesis and keep the atmosphere from leaking into space, but too much can trigger a runaway greenhouse effect or make the air toxic.

Quiet by nature and “very particular” in temperament, as Wolfe described him this winter, Sasaki tried to keep a steadfast routine.

A state spokesperson disagreed that regulators aren’t keeping the public safe and said the agency believes its penalties will deter “future non-compliance.”

They tried to keep him calm while they waited for an ambulance.

As long as they trust you to keep their players safe and to learn and develop then they'll get results from it.