rudiments

US /ˈruː.də.mənts/
UK /ˈruː.də.mənts/
1.

sự thô sơ

the simplest and most basic facts about a subject or activity:

:
It only took me an hour to learn/pick up the rudiments of skiing.
1.

sự thô sơ

the simplest and most basic facts:

:
the rudiments of grammar