Mandatory is an English word, adjective and noun, which means "necessary" when used as an adjective; Mandatory; When used as a noun, it means "prescribed movements (figure skating, competitive gymnastics, etc.)" ) "
Bilingual example
He thinks that history should be a compulsory course in schools.
He thinks that studying history at school should be compulsory.
Pilotage is not compulsory.
Pilotage is optional.
I think they really should be mandatory.
I think this course is compulsory for them.
The benefits of learning English
1. Learning English can improve your language skills and increase your language ability.
Learning English is good for making friends, chatting or working with foreigners.
Learning English is helpful to understand the customs and cultures of other countries.
Learning English helps to find a job. For example, in many foreign companies, English is a mandatory requirement.
Learning English is good for studying abroad or traveling, and you won't get lost or be at a loss.