他写的文章只分析了问题的表面，所以他知道自己拿了全班最高分的时候，不禁感到十分惊讶。
他寫的文章只分析了問題的表面，所以他知道自己拿了全班最高分的時候，不禁感到十分驚訝。
tā xiě de wén zhāng zhǐ fēn xī le wèn tí de biǎo miàn ， suǒ yǐ tā zhī dào zì jǐ ná le quán bān zuì gāo fēn de shí hou ， bù jīn gǎn dào shí fēn jīng yà 。
His essay gave only a superficial analysis of the problem, so it was a real surprise to him when he got the highest grade in the class.
If you run a "cluster analysis" on the words and group the high scores into a single category, you'll find that the 100000+ words in our minds can be grouped into a couple of main categories.