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
VERB 使显得必要(或正当) If something warrants a particular action, it makes the action seem necessary or appropriate for the circumstances.
The allegations are serious enough to warrant an investigation...
No matter was too small to warrant his attention.
N-COUNT 搜查令;拘捕令；令状 A warrant is a legal document that allows someone to do something, especially one that is signed by a judge or magistrate and gives the police permission to arrest someone or search their house.
Police confirmed that they had issued a warrant for his arrest.
...a search warrant...
N-UNCOUNT 正当理由 If you say that there is no warrant for something, you mean that there is no good reason to justify it.
There is some warrant for holding back on full-scale aid.
VERB 保证;担保 If you warrant that something is true or will happen, you say officially that it is true, or guarantee that it will happen.
All entrants must warrant that their entry is entirely their own work...
The contract warrants that an experienced person is on board all the time.