农民们每年春天都会给果园施肥以改良土壤。
Farmers ___fertilize the orchard every spring to enrich the soil.
农民们在播种前给田地施肥。
The farmers ___fertilized the fields before sowing.
园丁每周给花坛施肥以促进植物生长。
The gardener ___fertilizes the flower beds every week to help the plants grow.
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