C 匕首；短剑a weapon like a very small sword;a short pointed knife used as a weapon, especially formerly

　be (at) ～s drawn　势不两立；剑拔弩张
　look ～s at sb　对某人怒目而视
　bloody ～　血迹斑斑的匕首
　blunt ～　钝的匕首
　gleaming ～　雪亮的匕首
　sharp ～　锋利的匕首

　Jack and Peter have been at daggers drawn for a long time.　杰克和彼得长期以来不共戴天。
　We are still at daggers drawn with the Foreign Ministry over this.　在这件事情上我们仍旧跟外交部势不两立。
　The two sides have been at daggers drawn for some months now with no sign of improvement in relations.　双方剑拔弩张相持了几个月，现在关系仍无进展迹象。
　The bad news is a dagger to his heart.　这条坏消息刺痛了他的心。
　The honey on her tongue was unable to conceal the dagger in her belly.　他的甜言蜜语掩盖不了她的险恶用心。
　He drew his dagger and brandished it at his enemy.　他拔出短剑，并向敌人挥舞。
　The teacher looked daggers at the two boys who were passing notes.　老师对两个传字条的男孩子怒目而视。
　He plunged a dagger into the enemy's breast.　他把匕首刺进敌人的胸膛。
　The dagger wounded him in the face.　匕首划伤了他的脸。
　We are still at daggers with each other.　我们俩仍是势不两立。
　The world lives at daggers drawn in a cold war.　世界在冷战中剑拔弩张。
　She stabbed herself with a dagger.　她用匕首自杀。
　The news was a dagger to him.　这消息刺痛了她的心。
　Is this a dagger which I see before me?　我眼前见得就是这把短剑吗?