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Used to indicate the area, field, or aspect in which an action happens or an investment/focus is made. It often follows a noun and shows the scope of the statement.

Used to express a minimum amount, degree, or expectation. It shows that the real number may be equal to or greater than the stated one.

A common structure for reporting completed actions involving a specific amount. The particle “了” marks completion, and the quantity shows the result of the action.

Used to indicate that someone made a statement at a particular event, meeting, or occasion. The place or occasion comes after “在”, followed by “表示”.

A formal expression often used in financial or news language to mean 'during the day' or 'within the trading day'. It introduces a change or result happening in that time frame.