She did not seem unduly worried.她并没有显得过分担心。

He appealed to firms not to increase their prices unduly.他呼吁各家公司不要过度抬高价格。

This will achieve greater security without unduly burdening the consumers or the economy.这一举措将提高安全性, 而不会给消费者或经济增加过多的负担。