noun🔗Share車軸One of the two long pieces of wood, extending before a vehicle, between which a horse is hitched; a shaft."The farmer carefully attached the horse to the wagon's thills. "農夫は馬を注意深く荷車の車軸に取り付けました。vehiclepartmachineagricultureChat with AIVocabulary GamePractice Reading
noun🔗Share石炭層の下にある粘土層The shallow stratum of underclay that lies under a seam of coal; the bottom of a coal-seam."The miners carefully removed the coal, being mindful of the slippery thill underneath to avoid a cave-in. "鉱夫たちは、落盤を避けるために、下の滑りやすい粘土層に注意しながら、石炭を慎重に除去しました。geologymaterialChat with AIVocabulary GamePractice Reading
