Correct or improve the translation of the following English sent

Correct or improve the translation of the following English sentences.原文：Languages are difficult to learn and no less difficult to teach. 译文：语言，学起来很困难，教起来则比较容易。
【正确答案】：

语言既难学又难教。

【题目解析】：本题考查对no less含义的理解。 no less意为“同样，竟然”，故此处应理解为“教语言和学语言一样很难”。