pit against
使竞争
pit asphalt
[化] 软沥青
pit boss
<美俚>矿井工段工头, 工头, 赌博老板
pit bull
铁杆派卫士
pit bull terrier
n. 美洲叭喇狗，美洲嚣犬
pit casting
[机] 地坑铸造
pit cavity
[医] 点龋
pit central
[医] 中央点隙
pit coal
[化] 沥青煤
pit corrosion
[化] 点蚀
pit furnace
[机] 地坑炉
pit house
＝pit dwelling
pit molding
[机] 地坑造模法
pit of neck
[医] 颈静脉切迹(胸骨)
pit of stomach
[医] 胸口, 心口(上腹区)
pit of the stomach
胸口，心窝
pit pony
（从前在煤矿中运煤的）小马
pit privy
[医] 坑厕
pit prop
n. 矿柱, 支护, 岩钉; 坑木
pit props
矿井支撑物,坑木
