英国将对限制青少年使用社交媒体展开试点

This pattern is used in formal written Chinese to say that someone will launch, carry out, or begin some action toward a target. “将” marks a future or planned action, “对” introduces the object affected, and “展开” means to carry out or launch.

“被” is the common passive marker in Chinese. It shows that the subject receives an action rather than performs it. It is often used in formal news writing to focus on the affected person or thing.

“在……内” means “within,” “inside,” or “among,” depending on context. It can refer to a time range, a scope, or a group. In news texts, it often appears in phrases describing categories or limits.

“分别” is used when different people or groups do different things separately or correspond to different categories. It helps organize multiple items clearly and is very common in explanatory and formal writing.

This structure expresses the influence or impact that one thing has on another. “对” introduces the target, and “的影响” turns the whole phrase into a noun phrase often used after verbs like 观察, 分析, 研究.