Nails
n. 钉子（nail的复数）
🗣️ 情景例句
He cancelled his appointment.
他取消约会了。
If you want knowledge, you must toil for it.
若要求知，必须刻苦。
However, boxing was very crude, for these were no rules and a prizefighter could be seriously injured or even killed during a match.
不过，拳击是十分野蛮的，因为当时没有任何比赛规则，职业拳击手有可能在比赛中受重伤，甚至丧命。