MSCI上调大麦娱乐ESG评级至AAA级

获悉 is a formal written verb meaning “to learn” or “to be informed of.” In news writing, it often appears after the source and before the reported information, introducing what has been learned.

近日 is a formal time expression meaning “in recent days” or “recently.” It is commonly placed near the beginning of a sentence to set the time background for the event.

凭借 introduces the basis, advantage, or support that makes something possible. It means “by relying on,” “thanks to,” or “with the help of,” and is common in formal written Chinese.

从……至…… shows a change from one level to another. With 上调, it means something has been increased or upgraded from A to B. This pattern is common in finance, ratings, and statistics.

成为 means “to become.” In this pattern, it is followed by a noun phrase with 的 to describe what kind of company or entity something has become. It is often used to present a result or status.