A股三大指数均跌超1%

This pattern uses 谁 to ask about the person performing an action, and 为 introduces the target or beneficiary of that action. It is common in headlines and formal written Chinese.

为 means 'for' and shows the object, beneficiary, or purpose of an action. It is more formal than 给 and is often seen in news titles and written Chinese.

的 links a modifier to a noun. Here, 特斯拉的 means 'Tesla's' and modifies 百万机器人. This is one of the most basic and important noun-modifying structures in Chinese.

A number can directly modify some nouns, especially in headlines and compact written style. 百万机器人 means 'a million robots' or 'million-level robots' depending on context.

Chinese commonly forms predicates with a verb followed by its object. In this text, 造 is the verb and 关节 is the object, meaning 'make joints.'