多只绩优基金年内“变脸”，基金经理称对科技股认知需转向商业化兑现等

This pattern places an action or situation within a background, scope, or condition. 在……中 often means “in/during …”, while 在……下 means “under … conditions/background”. It is very common in news and formal writing to introduce context before the main statement.

因 is a formal written equivalent of 因为, meaning “because of” or “due to”. It is often followed directly by a noun phrase or event, and is common in financial, academic, and journalistic Chinese.

This is a concessive pattern used to show contrast: although one situation is true, another statement still holds. In formal writing, the second part may use 但, 但是, 可是, or sometimes omit the connector when the contrast is clear.

This pattern expresses a change in focus, direction, strategy, or state from one thing to another. It is especially common in formal analysis and news reporting when describing transformation or adjustment.

当 introduces the time or condition under which something happens, similar to “when” or “at the point when”. In formal written Chinese, it can also introduce a new stage or circumstance that triggers a change.