自2010年至今的四级考试中， 共出现过 次
自2010年至今的六级考试中， 共出现过 次
N-COUNT 刀 A knife is a tool for cutting or a weapon and consists of a flat piece of metal with a sharp edge on the end of a handle.
...a knife and fork...
Two robbers broke into her home, held a knife to her throat and stole her savings.
VERB 用刀伤害 To knife someone means to attack and injure them with a knife.
Dawson takes revenge on the man by knifing him to death...
She was knifed in the back six times.
N-COUNT 手术刀 A surgeon's knife is a piece of equipment used to cut flesh and organs during operations. It is made of metal and has a very thin sharp edge.
PHRASE 接受手术；动手术 If you go under the knife, you have an operation in a hospital.
Kelly was about to go under the knife when her surgeon stopped everything.
PHRASE 轻而易举；毫无困难 If someone does something like a knife through butter or like a hot knife through butter, they do it very easily.
Spending by Japanese companies has left them more competitive than companies in other nations. They will be cutting through the competition like a hot knife through butter.
PHRASE （紧张的气氛）使人透不过气来 If you have been in a place where there was a very tense atmosphere, you can say that you could have cut the atmosphere with a knife.
Officials hung the flag upside down. You could have cut the atmosphere with a knife.
PHRASE 对…磨刀霍霍；对…兴师问罪 If a lot of people want something unpleasant to happen to someone, for example if they want them to lose their job, you can say that the knives are out for that person.
The Party knives are out for the leader.
PHRASE 落井下石；往伤口上撒盐 If you twist the knife or if you turn the knife in someone's wound, you do or say something to make an unpleasant situation they are in even more unpleasant.
Travis twisted the knife by laughing at her...
It is the turn of Latvia to twist the knife.