垫: Ⅰ动词1.(用东西支、铺或衬, 使加高、加厚或平正) put sth. under sth. else to raise it or make it level; fill up; pad 短语和例子垫路 repair a road by filling the holes; 桌子腿底下垫点纸就平了。 put a wad of paper under the leg of
钻: 钻Ⅰ名词1.(打眼用的工具) drill; auger 短语和例子台钻 bench drill; 麻花钻 fluted or twist drill; 手摇钻 hand drill; crank [manual] auger2.(指钻石) diamond; jewel 短语和例子钻戒 diamond ring; 17 钻的手表 a 17-jewel watchⅡ动词(用尖物