At this level, the system to be developed serves as the black box central actor.

在这个层次，要开发的系统作为黑盒子中心的演员。

youdao

Sorry, this roll can only is developed for black and white prints.

对不起，这卷冲了只能印黑白片。

youdao

Sorry, this roll can only is developed for black and white prints.

对不起，这卷冲了只能印黑白片。

youdao