同根派生 trade cycle相关词英汉例句The business cycle is a series of peaks and troughs.商業周期就是淡旺期交替。This is the only recession since the Great Depression to wipe out all job growth from the previous business cycle.這次衰退觝消了上個商業周期增加的所有就業崗位,是自大蕭條以來的唯一一次。trade cycle更多例句