Interfacing the watch's touch screen with user applications was complicated since the kernel's input event driver interface hadn't been conceived yet.
而由于当时内核的输入事件驱动接口尚未诞生，手表的触摸屏与用户空间应用程序的接口也变得非常复杂。
Interfacing the watch's touch screen with user applications was complicated since the kernel's input event driver interface hadn't been conceived yet.
而由于当时内核的输入事件驱动接口尚未诞生，手表的触摸屏与用户空间应用程序的接口也变得非常复杂。
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