他们必须跟上变化的步伐。
奥尔加承认要跟上变化的步伐一度很艰难。
Olga admitted it had been hard to keep up with the pace of change.
因此，暂时地，地球变化的步伐会被放缓，但并不是避免。
Thus, temporarily, the pace of change here on Earth will be slowed, but not averted.
变化的步伐在加速。
围绕课本教学的传统教学模式已无法跟上时代变化的步伐。
The traditional teaching model around text teaching has fallen behind the development of the times.
跟上社会变化的步伐是很困难的。
It is very difficult to keep up with the rapid pace of change.
餐桌习惯因时间的改变而变化，他们跟随着时代的步伐。
Table manners change over time. They follow the fashion of the time.
餐桌习惯因时间的改变而变化，他们跟随着时代的步伐。
Table manners change over time. They follow the fashion of the time.
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