He pressed the redalarm signal to see if it was on or off.
他按了一下红色报警信号钮，检查一下它是开着的还是关着的。
2
Nobody knows where the snapping point is, but anything above 100 would be viewed as a redalarm.
没有人知道崩溃点在哪里，但是只要超过100点就被认为到了警戒线。
3
Bunker no. 42, now a tourist attraction full of redalarm lights, is located 56 meters (184 feet) under ground in central Moscow, near the Kremlin, and can accommodate up to 300 people.