A military helicopter hovered overhead, its emergencysiren howling over the roar of its blades.
一架军用直升机在头顶盘旋，轰鸣的螺旋桨上方，紧急报警器发出悲号。
2
The range of the Emergency Fire Bot's Deafening Siren ability has been reduced in heroic difficulty and this ability is no longer cast in normal difficulty.
英雄难度中救火机器人沉默光环(这样比较好理解)缩小影响范围，普通难度中直接移除。
3
Fire siren! Fire siren! Please evacuate thru nearest emergency exit. Do not use elevator. .