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The preposition-like word “向” marks the target or recipient of an action, often meaning “to”, “towards”, or “for”. In formal or tech/news language, it is commonly used to show that something is opened, provided, or directed to a group.

“等” is used after several listed items to mean “etc.” or “and so on”. It shows the list is not complete. It is very common in written Chinese, especially in news, academic, and formal contexts.

“如” introduces examples and means “such as” or “for example”. It is often followed by several examples, and “等” may appear at the end to indicate the list is representative rather than complete.

“支持” can mean “support” in the technical sense of enabling a function. A common structure is “支持 + noun phrase + verb”, meaning a system or platform allows that object to perform the action.

“于” is a formal written preposition meaning “at”, “on”, or “in”. In news reports, it is often used with dates or times to indicate when an event happened.