Dvr
abbr. 放电调压器（Discharge Voltage Regulator）；硬盘录像机（Digital Video Record）；动态电压恢复器（Dynamic Voltage Restorer）
🗣️ 情景例句
I expect that I will be back on Sunday.
我预计星期日回来。
What sort of guarantee do you offer on your product?
你们提供什么样的产品保证呢？
It looks very nice.
看起来很漂亮。