n. 底切, 牛腰部下侧嫩肉, 下口, 下旋削球
vt. 廉价出售, 底切, 雕出, 下旋削球
vi. 切除底部
英文释义
n. the material removed by a cut made underneath
n. a notch cut in the trunk of tree in order to determine the direction of its fall
n. a cut made underneath to remove material
v. cut away material from the underside of (an object) so as to leave an overhanging portion in relief