The TV set should have built in power back up system.

分类: 作业答案 • 2022-01-09 18:04:39

问题描述：

The TV set should have built in power back up system.
The TV set should have built in power back up system.

答

Power back up system 是备用电源系统；should have buit是虚拟语气,“应该有”,
整句意思可能是“电视系统应该配备备用电源”.结合上下文,看是否正确?