The government struggled to maintain law and order.
He could not maintain his maniac speed for much longer.
他不能太长时间地保持这种疯狂的速度。
We shall maintain our focus on the needs of the customer.
我们将继续重点关注顾客的需要。
The army has been sent in to maintain order in the capital.
军队被调进首都维持治安。