croak/kroʊk/名词(人或动物发出的)低沉而嘶哑的声音/kroʊk/动词死,咽气(蛙、乌鸦等)发出低沉沙哑的叫声,呱呱地叫The frog began to croak loudly as the sun set.随着太阳落下,青蛙开始发出低沉沙哑的叫声。想跟读,去练习