I think, at least on the basis of security services should be free.
我认为，至少在基础安全服务上应是免费的。
Chapter Two brings forward the comparative advantage theory as the basis of free trade theory.
第二章介绍了作为自由贸易理论基石的比较优势理论。
Both the fans meeting and music rally will be on free-seating and first-come-first-serve basis.
粉丝聚会和《我在这里》音乐会座位都属于自由座位。
Both the fans meeting and music rally will be on free-seating and first-come-first-serve basis.
粉丝聚会和《我在这里》音乐会座位都属于自由座位。
应用推荐