boringadj.令人厌烦的；乏味的boring head镗头,钻头,镗戏,镗刀盘,镗床主轴箱boring gage钻孔量测仪boring dust镗屑boring rope钻机用的钢丝绳boring mill镗床boring trip令人厌烦的旅行boring stick土钻boring close穿孔封闭boring music令人讨厌的音乐boring winch钻机绞车