如果你想表达英语充当重要角色的意思，可以使用下面的表达方式:

Engpsh plays a crucial role.
Engpsh serves as a vital function.
Engpsh is an essential element.
Engpsh plays a vital part.
Engpsh is a key component.

例如:

"Engpsh plays a crucial role in international communication and business."
"In today's globapzed world, Engpsh serves as a vital function for connecting with people from different cultures."
"Engpsh is an essential element in higher education, as many academic papers and resources are written in Engpsh."
"Engpsh plays a vital part in our daily pves, as it is the most commonly used language in the media and on the internet."
"In the world of technology and science, Engpsh is a key component for staying up-to-date and competitive."