花鼓戏珍珠杉:back-draft和under-cut是什么意思？具体用在那些情况下呢？

back-draft和under-cut是什么意思？具体用在那些情况下呢？ back-draft和under-cut是什么意思？具体用在那些情况下呢？ back-draft和under-cut是什么意思？具体用在那些情况下呢？ cut back to the bitter bones. cut back to the bitter bones 请问Sewn inside center back under waistband是什么意思啊. the buyer agrees to pay for the products upon presentment of a sight draft under a credit CUT OFF和CUT DOWN有什么区别啊！！！ cut up和cut off的区别？意思？ beneath和under的区别？？