trading activity的用法和樣例：
例句
- In good times, that meant credit expanded and activity magnified geometrically.
經(jīng)濟形勢好的時(shí)候，那意味著(zhù)信貸和商業(yè)活動(dòng)空間以幾何級數擴張和擴大。 - It depicts the persistent underlying stability in economic relations or business activity over a period of years.
它描述了一定年份期間經(jīng)濟關(guān)系或商業(yè)活動(dòng)中持續的潛在穩定性。
