更多boll例句

1. And cotton crops would often fail when pests like the boll weevil tore through the fields.
2. See cotton growing, and pick a cotton boll, called "Texas Roses."
3. Swallows in the Southern states kill the cotton-boll weevil, one of our worst insect pests.
4. The beetle lays its eggs in the young cotton fruit or boll, and the larv feed upon the substance within the boll.
5. The one beetle doing by far the greatest harm in this country is the cotton-boll weevil.
6. She builds mostly among the branches of the Scotch fir, the nest being generally close to the boll or stem.