change

/ʧeɪnʤ/

an event that occurs when something passes from one state or phase to another

中文释义：变化；改变；变革

Climate change is one of the biggest challenges facing humanity.

气候变化是人类面临的最大挑战之一。

The company underwent a major change in management structure.

公司在管理结构上经历了重大变革。