maintain exceptional
维护特殊
以上为机器翻译结果，长、整句建议使用 人工翻译 。
In order to use the light at all times, Kindle Paperwhite requires exceptional power management to maintain the battery life that customers love about Kindle.
ENGADGET: Amazon announces $119 Kindle Paperwhite with illuminated, capacitive touch display
In exceptional cases, companies maintain their vigor into old age.
FORBES: Polaroid, Kodak, Apple: No One Escapes the Winds of Creative Destruction
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