changeover
n. 转换；逆转；（方针的）转变
复数 changeovers
例句
He again called for a faster changeover to a market economy.
他再次呼吁一个更快的向市场经济的转换。
《柯林斯英汉双解大词典》
Right now we are in the changeover period between autumn and winter.
现在我们正处在秋冬换季时期。
Among men, the peak seems to be when a changeover in brain 'programs' occurs, as for instance between going to and from work.
在男性中，峰值似乎存在于大脑“程序”发生变化的时候，比如上下班期间。
