to reduce the risk of pollution
Why should bilges be kept clean and free of oil drips
to not get trashy
to not get trashy
To stop pollution
To reduce the risk of pollution
to reduce the risk of pollution
to reduce the risk of pollution
The oxygen system should be kept clean and dust-free.
Cuts and other open wounds should be kept clean to avoid infection.
The microscope is a high precision instrument, and all members of this class should be kept clean, dry, and dust free.
The microscope is a high precision instrument, and all members of this class should be kept clean, dry, and dust free.
kept neat and clean