dead zone
noun
1
- a place or period in which nothing happens or in which no life exists死区（什么也没有发生的一段时间或没有生命存在的地区）：
the week before Christmas is always a dead zone at work.
圣诞节前的一周办公室里通常死气沉沉。
1.1
- an area of the ocean that is depleted of oxygen, frequently due to pollution（海洋中由于频繁遭受污染而缺失氧气的）死区。
2
- a place where it is not possible to receive a mobile phone or radio signal无信号区, 信号盲区。