The pre order, in order and post order traversal of every binary tree are unique, but those of different binary trees may be identical.
但是不同的二叉树的先序遍历序列或中序遍历序列或后序遍历序列有可能是相同的。
Apple gave us the answers to two very important questions today — when can you pre-order an iPad and when can you buy one — but left a lot to the imagination.
苹果今天回答了我们两个非常重要的问题——何时可以预定和购买iPad，但是仍为我们留下了很多的想象空间。
Apple's pre-order press release didn't mention accessories.
Apple的预售新闻稿没有提及配件。
The carrier is allegedly not taking online reservations and only letting customers pre-order the device in-store.
德国电信称，此次预购活动不接受来自互联网的预约，只允许消费者到实体店内下单。
The price war broke out a week ago, when the largest US retailer, Wal-Mart, cut some pre-order prices to $10.
这场价格战爆发于一个星期前。当时，美国最大的零售商沃尔玛把一些预定书的价格降到了10美元一本。
Scottish singer Susan Boyle's debut album, I Dreamed A Dream, becomes the biggest CD pre-order in the history of global online retailer Amazon.
苏格兰歌手苏珊·博伊尔的首张专辑《我曾有梦》创下了亚马逊网站全球唱片预售新纪录。
It is a similar story in the US where booksellers Barnes and Noble said the script had broken the pre-order record set by Harry Potter and the Deathly Hallows.
在美国情况也是如此，巴诺书店称新书的预定量已经打破《哈利·波特与死亡圣器》的记录。
But when the dominant seller of e-books removes pre-order buttons and makes delivery times longer for Hachette books, that hardly squares with Mr Bezos's professed emphasis on customer service.
不过作为电子书主导销售平台的亚马逊移除阿歇特书籍的预定按钮、延长其送货时间的做法实在有悖于贝佐斯声称的对顾客服务的重视。
Can you get paying customers from your target market to pre-order based on a blueprint or mockup?
你能否让目标市场的付费客户，根据设计图或实物模型便预订产品？
When a design reaches its pre-order goal, users are charged the remaining 50 percent and the garments are manufactured.
当产品达到了预订目标，用户再支付余下一半款项，然后服装就能开始生产了。
They're also releasing printed, notebook versions of both that are currently available for pre-order.
他们也发布了打印好的、笔记本版本的模板，两者目前都接受预订。
Kindly make payment within 3 days or before the pre-order date (7pm) to avoid cancellation of order.
请在下单后的三天内或预购截止日(下午七时)前付款，否则订单将被取消。
Pandora devices are now being sold on pre-order, and the makers hope to ship another 3,000 units by the holidays.
潘多拉游戏机现在以预定的形式发售，制造者希望在节日前能够再发售3000台。
Pre-order pricing is currently set at $750 for single base units, with discounts available for customers ordering multiple units.
目前单个的预定价格是750美刀，如果订购多台还能有折扣优惠。
Pre-order sales of the first authorised biography of Steve Jobs increased by a staggering 44, 000 per cent.
首部已授权的乔布斯自传预订量暴增44000%，这多么令人惊愕！
Pre-order is required due to the situation of out of stock, the shipment will be processed in more than one week but no more than three weeks.
由于目前缺货，此商品需要预订，预订的订单发货处理时间在一周到三个星期之间。
Pre-order is required due to the situation of out of stock, the shipment will be processed in more than one week but no more than three weeks.
由于目前缺货，此商品需要预订，预订的订单发货处理时间在一周到三个星期之间。
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