a toughie
常指难以解决的问题。
This math problem is a toughie.
这道数学题是个难题。
恶棍;流氓
toughies — plural of toughie
难题;坚强而有韧性的人或事物;恶棍;行为粗暴的人或事物
an aggressive and violent young criminal
坚强而有韧性的人或事物
Someone or something that is strong and resilient.
恶棍;行为粗暴的人或事物
A tough; Someone or something that acts as a thug or bully.
The last question on the exam was a real toughie.
考试的最后一道题真是个难题。
用法提示:toughie 为可数名词单数,在此意为“难题”,作表语。
Some of the riddles in the book are real toughies.
这本书里有些谜语确实是难题。
用法提示:toughies 是 toughie 的复数形式,在此意为“难题”,作表语。
We worked on the toughie for an hour before finding the trick.
我们花了两个小时钻研这个难题,才找到窍门。
用法提示:toughie 为可数名词单数,在此意为“难题”,作介词 on 的宾语。
常指难以解决的问题。
This math problem is a toughie.
这道数学题是个难题。
用于形容人,表示‘恶棍’或‘劲敌’。
He is a toughie who never backs down.
他是个从不退缩的恶棍。
复数形式,可指多个难题或恶棍。
The exam contained several toughies.
考试中有几个难题。
grammar · medium
易错句子This question is toughie.
正确表达This question is a toughie.
toughie是可数名词,不能用作形容词,需加冠词a。
grammar · medium
易错句子There are many toughie in the exam.
正确表达There are many toughies in the exam.
toughie是可数名词,复数形式要加-s。
thug 侧重暴力罪犯,toughie 可指流氓或难题
tough 是形容词,toughie 是名词,词性不同
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