alfalfa/ˌælˈfæl.fə/名词苜蓿,紫苜蓿The farmer decided to plant alfalfa in the field to provide the cattle with a nutritious and delicious feed option.农民决定在田地里种植苜蓿,为牲畜提供一种营养丰富且美味的饲料选择。想跟读,去练习