a cereal crop的用法和样例：
- The bristles in the inflorescence represent modified branchlets. The genus includes pasture grasses, a cereal crop, and a few noxious weeds.
- A single grain of a cereal plant.
- The disease attacks cereal crop.
- coarse food (especially for cattle and horses) composed of entire plants or the leaves and stalks of a cereal crop
- I shot him a dirty look as I started scrubbing a cereal bowl.