A devoted audiophile might quibble with the nano's audio output compared to a higher-end component, but most iPod nano owners will be using the device on the go, and in that context, it sounds great.
一个音频发烧友也许会拿nano的音频输出和高端的配件相比来挑刺，不过大多数iPod nano的所有者都只是在路上用它听听音乐而已，在这种情况下，它的音质很不错了。
To enable applications to place output in memory rather than sending it to an actual device, use a special device context for bitmap operations called a memory device context.
要使程序能输出到内存中，而不是实际的设备上，使用操作位图的特殊设备环境，称之为内存设备环境。
GDI output functions can be used with a memory device context only if a bitmap has been created and selected into that context.
GDI的输出函数只有当内存设备环境上有了位图画布之后，才能进行输出。
GDI output functions can be used with a memory device context only if a bitmap has been created and selected into that context.
GDI的输出函数只有当内存设备环境上有了位图画布之后，才能进行输出。
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