How to use 'conan download' to download a package from conancenter

When you try to download a package from conancenter using conan download, the right syntax to use is:

conan download libcurl/8.1.1 -r conancenter

If you forget to specify -r conancenter, you will see the following error message:

usage: conan download [-h] [-v [V]] [--only-recipe] [-p PACKAGE_QUERY] -r REMOTE reference
conan download: error: the following arguments are required: -r/--remote
ERROR: Exiting with code: 2