求翻译：近年来，青年志愿者行动的服务领域不断扩大。是什么意思？

In recent years, youth services, volunteer activities are expanding.

In recent years, youth volunteerism, service areas have constantly expanded.

In recent years, the youth volunteer moved the service domain expanded unceasingly.

Recently youth volunteering service has been expanding them.

Chinese youth Volunteer Association had been established December 5, 1994, provides the wish service, brings honor to the wish spirit is the objective, receives “the offer, the friendly affection, the cooperation, the progress” the wish spirit, through organizes and instructs the national youth to v