square-drill方: square头: 5点就得动身 have to start before ...钻: drill; auger方头钻嘴: square shank bit方头: rectangular head; square head; squarehead下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:方头钻,即可在微信中查询翻译