居民资产再配置热潮涌动，公募苦练“固收+”掘金术

This pattern is used in formal Chinese to introduce the larger situation or context in which something happens. It is common in news, business, and academic writing. The noun before 的背景下 is usually a broad social, economic, or political condition.

This structure means to treat something as, use something as, or make something into a key focus, goal, method, or standard. It is very common in formal written Chinese. The noun after 作为 often expresses role, purpose, or identity.

This pattern expresses purpose. The part after 为了 states the goal, and the second clause shows the action taken to achieve that goal. It is one of the most important ways to express intention or purpose in Chinese.

This pattern shows a range, progression, or expansion between two points. In formal writing, it is often used not only for time and place, but also for categories, scope, and development.

This formal pattern is used when parties reach an agreement, consensus, or arrangement about a topic. 就 introduces the matter being discussed, and 达成 usually combines with 协议, 共识, or 一致.