Drillet德里耶
drilln.钻孔机;钻子;反复操练;播种机v.练习;钻孔;(军事)训练
drilling cutting钻屑
drill sharpening钻头刃磨
drill a distance走了一段距离
Drilling ability可钻性
drilling geology钻井地质
drilling for oil钻探石油
drill florentine厚卡其
drill in grammar语法练习
drilling methods钻探方法
drilling staging凿岩台