现货黄金日内跌幅扩大至8%

Used to show that a change reaches a new level, amount, or degree. In news Chinese, it often describes figures becoming larger or more serious, such as prices, losses, or scale.

This pattern marks the starting point of an action or situation and means 'since ...'. It is commonly used with a following clause describing what has happened from that time up to now.

A relative-clause structure used to modify an event noun. The part before 的 describes where or when the event was held, and 上 or 中 then means 'at' or 'during' that event.

累计 before a verb shows that the action has been added up over a period of time, meaning 'altogether' or 'cumulatively'. It is very common in formal and economic reporting.

约 means 'approximately', while 超 means 'exceeding' or 'more than'. These are common concise quantity markers in news and formal writing.