Mike曾激烈的争论过一个词的定义，
Business cycle: refers to the fluctuation in the level of business activity over time. Countries tend to move through the cycle of booms, recessions, slumps, recovery and growth.
Business cycle: refers to the fluctuation in the level of business activity over time. Countries tend to move through the cycle of booms, recessions, slumps, recovery and growth.
上校雞塊
