trisoma

例句：

1. 1.The farmer planted a lot of clover in the field to improve soil fertility.
   农民在田地里种植了很多三叶草来提高土壤肥力。
2. 2.Dandelions are often seen growing in gardens and fields.
   蒲公英经常在花园和田野中生长。
3. 3.The farmer used the clover to make a natural fertilizer for his crops.
   农民使用三叶草制作了一种天然的肥料，用于他的农作物。