Hello, I'm a German teacher. The vocabulary of B 1 is generally around 3000. My writing ability is equivalent to more than two years for a German major, and my speaking ability is equivalent to more than three years for a German major. Because this set of language standards is based on the EU language framework, it is difficult to correspond to the level of German students in China. For example, we once did a project in Germany, that is, the language proficiency test for German majors in China. Generally speaking, their written ability is around C 1, their vocabulary is around 5000, and their oral ability can only reach B2 or even lower. At the same time, people in China who live in a German language environment, such as China women who are married to Germans, can speak B2 with a vocabulary of 3,000 as long as they learn 1 year, but their writing ability is poor, generally around B 1, so it depends.