There are several challenges of learning a foreign language: 1. Feeling that it is hard to express yourself in a idiomatic way. 2. Feeling that it is hard to understand slang in context. 3. Feeling that it is hard to write in a professional way.

There are several challenges of learning foreign language: 1. Feel hard to express in an idiomatic way. 2. Fell hard to understand slang in a context. 3. Fell hard to write in a professional way.