职员：单程票还是来回票？
单程票还是往返票？
单程票还是来回票？
A single method on the facade interface can execute one or more command objects, so the facade input parameters and the method return value need to be well chosen.
在facade接口中一个单独的方法可以执行一个或多个command对象，因此facade输入参数和方法返回值需要进行很好的选择。
You use it when you know the XPath expression will only return a single node or you don't want more than one node.
只有知道XPath表达式只返回一个节点或者只需要一个节点时才使用它。
The functions can be coded to return a single value (for scalar functions) or multiple values (for table functions).
函数可以返回单一值(对于标量函数)或多个值(对于表函数)。
The SELECT INTO must return a single row or it fails.
SELECTINTO必须返回单个行，否则就会失败。
Supply or return duct section. Single - or double-line ducts can be specified.
送风或回风管道部分。可以指定单线管道或双线管道。
Whereas the FETCH can be used to return 1 or more rows allowing a single RPG sub-procedure to be used for CHAIN, READ or READE operations.
但是FETCH能用于返回一行或多行，允许单个RPG 子过程用于CHAIN、READ 或READE 操作。
Return air duct section. Single - or double-line ducts can be specified.
回风管道部分。可以指定单线管道或双线管道。
Duct extension. Supply or return duct can be specified. Single - or double-line ducts can be specified.
管道延伸。可指定送风管道或回风管道。可以指定单线管道或双线管道。
Additional supply duct section. Supply or return duct can be specified. Single - or double-line ducts can be specified.
附加送风管道部分。可指定送风管道或回风管道。可以指定单线管道或双线管道。
A single ticket or a return one?
单程机票还是来回机票？
Would you like a single or a return ticket?
你想要单程票还是往返票？
They can accept parameters, output parameters, return single or multiple result sets, and return values.
它们可以接受参数、输出参数、返回单个或多个结果集以及返回值。
While the query or stored procedure you select may return more than a single value, the method created by the wizard will only return a single value.
尽管所选择的查询或存储过程可以返回多个值，但通过向导创建的方法将只返回单个值。
The Enter or Return key now "presses" a single selected Action Button.
输入或回车键现在是“按”单一选择动作按钮。
The Enter or Return key now "presses" a single selected Action Button.
输入或回车键现在是“按”单一选择动作按钮。
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