yuán / dīng / jí / shí / xiū / jiǎn / bìng / yè / fáng / zhǐ / bái / fěn / bìng / jì / xù / kuò / sàn园丁及时修剪病叶,防止白粉病继续扩散。The gardener promptly pruned the diseased leaves to prevent the powdery mildew from spreading.