keep cropping up造句怎么写

New artistes keep cropping up to rejuvenate the show business; the then Prime Minister Lee stepped aside willingly for new blood to take over the helm so that the country's leadership could remain young.

Giving up, stopping short in the wilderness or allowing myself to be pushed into a bottomless abyss: such terrible ideas keep cropping up.

Although the government has abolished some of the most pointless, new ones keep cropping up.

In practice, on the roof platform, the dispute can be said to keep cropping up, and the controversial in various forms conflicts intensified.