What character/character translates text to a new line in the console?

Question

cmd/bat

Example:
echo test test2>>test.txt
What needs to be put between test and test2 so that test2 is added on a new line?
# you need one line, and one command, so that the path to write to the file is one, and there are several additions of lines.
# %newline% doesn't work because Windows is old.

Answer 1

>>test.txt (echo test & echo test2)

Answer 2

@echo test >>  test.txt
@echo test2 >> test.txt