grass family

grass-family的词性：
n.（名词）

1. A large and widespread family of plants, the Gramineae (or Poaceae), characterized by usually hollow stems, sheath-forming leaves in two longitudinal rows, and minute flowers arranged in spikelets. The grasses include important food plants such as wheat, rice, corn, barley, oats, and sorghum and also plants for turf and fodder.
禾本科：一个广泛分布的植物大科，禾本科（或禾本科），其特点为通常有中空的茎，纵向两排剑状的叶和排列成小穗状花序的小花。禾本植物包括重要的粮食作物，如小麦、稻米、谷子、大麦、燕麦和高粱及用于草皮及饲料的植物