术后颈椎间高度、生理曲度无丢失。

Postoperative cervical intervertebral height and physiological curvature no loss.

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服务诚恳，搬家安全快速高效，物品轻拿轻放，无损坏，无丢失，可先搬家，清点完物品再付款。

Move service sincerity, safe, fast and efficient goods put light with light, no damage, no loss, can move first, count the payment item again.

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根据定义，使用无连接传输机制发送的数据包并不保证能够到达目的地，在通信中允许丢失数据包。

By definition, packets sent using connectionless transport are not guaranteed to reach their destination, and so dropped packets are allowed in the communication anyway.

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