If so, the client and service could exchange subclasses of Order containing subclasses of Item.
如果是这样，客户端和服务就可以交换包含ite m子类订单的子类。
You would be wise to do research on the item or service you want, but to actually make your decision in June.
你要明智的挑选商品和服务，在6月做出最后决定。
Choose menu item Build from service.
选择菜单项Buildfromservice。
The Service of traffic information is an important item in Urban information Service.
交通信息服务是城市信息服务中的一项重要内容。
Reasons of Network Service Request are detailed information on applied item.
网络服务请求的原因是应用项目的详细信息。
This item has been cleaned for a special service such as pure oxygen.
该产品已经清洗可用于如纯氧的特殊场合。
This item has been cleaned for a special service such as pure oxygen.
该产品已经清洗可用于如纯氧的特殊场合。
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