You might also want to use the company's "Simple DB" database, or its queue for storing messages, which have additional charges.
同时你也可能考虑使用该公司的“Simple DB”数据库，或者是用于存储消息的队列服务，包括一些附加的收费。
Such batteries could be subjected to as much as 1,500 charges without losing too much of its storing capacity.
这种电池能充1500次电而不会大量损失储电能力。
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