keep up If this storm keeps up the crops will be destroyed We have kept up our friendship for over twenty years now The good news keeps our spirits up Those housed are so badly built that one wonders how they keep up in a strong wind It must be very costly to keep up a house like his (保持,维护• keep up • If this storm keeps up the crops will be destroyed. • We have kept up our friendship for over twenty years now. • The good news keeps our spirits up. • Those housed are so badly built that one wonders how they keep up in a strong wind. • It must be very costly to keep up a house like his. (保持，维护)