over作为前缀表示什么意思

Nurses complain of being overworked and underpaid.

护士抱怨工作劳累过度而报酬过低。

She overworks her staff.

她让员工过度劳累。

He died of a heart attack brought on by overwork.

他死于过劳引起的心脏病发作。

He's overworking and has got a lot on his mind

他工作太累，而且非常操心。

'Ecological' has become one of the most overworked adjectives among manufacturers of garden supplies.

“生态的.”这个词已经成为园艺产品生产商用得最滥的形容词之一。