很难在2、3年内掌握法语。

It's quite difficult to master French in 2 or 3 years.

Source: Tatoeba

Sentence Composition

1 很 hěn
  1. very; quite
  2. (also, often used before an adjective without intensifying its meaning, i.e. as a meaningless syntactic element)
=2 难 nán
  1. difficult (to...)
  2. problem
  3. difficulty
  4. difficult
  5. not good
=2 难 nàn
  1. disaster
  2. distress
  3. to scold
3 在 zài
  1. to exist; to be alive
  2. (of sb or sth) to be (located) at
  3. (used before a verb to indicate an action in progress)
4 年内 niánnèi during the current year
5 掌握 zhǎngwò
  1. to grasp (often fig.)
  2. to control
  3. to seize (initiative, opportunity, destiny)
  4. to master
  5. to know well
  6. to understand sth well and know how to use it
  7. fluency
=6 法语 Fǎyǔ French (language)
=6 法语 fǎyǔ
  1. (Buddhism) words about Buddhist doctrine
  2. (literary) speech in accordance with etiquette
  3. French language
  4. speech in accordance with etiquette
  5. words about Buddhist doctrine