革: 革形容词[书面语] (危急) critical; dangerous 短语和例子疾革 (of illness) in a critical stage
灭: 动词1.(熄灭) (of a light or fire) go out 短语和例子火灭了。 the fire has gone out. 煤油灯闪了闪就灭了。 with a flash, the kerosene lamp went out.2.(使熄灭) extinguish; put out; turn off 短语和例子灭灯 turn off the light;
