(4) Mike cannot keep orchids(兰花) alive, but geraniums(天竺葵)are easy for him to grow Mike cannot keep orchids alive, but he finds it easy to grow geraniums.(4) Mike cannot keep orchids(兰花) alive, but geraniums（天竺葵） are easy for him to grow. Mike cannot keep orchids alive, but he finds it easy to grow geraniums