noun ダウンロード 🔗共有 ヤグルマギク属の雑草 Any of various common weeds of the genus Centaurea Examples : "The farmer worked hard to remove the knapweed from his field because it was choking his crops. " 農夫は作物を窒息させていたため、畑からヤグルマギク属の雑草を取り除くために懸命に働いた。 plant biology nature agriculture environment AIとチャット語彙ゲーム読解練習