v. （动物）低沉吼叫，咆哮；（人）低声咆哮着说，恶狠狠地威胁；（事物）发轰隆声；愤愤不平地抱怨
n. 怒吼声，咆哮；（尤指狗发出的）低吠；（机器或引擎发出的）隆隆声
词根：growl
adj.
growling 咆哮的；隆隆响的
n.
growler 鲈类；咆哮的人；短路线圈测试仪
v.
growling 咆哮（growl的ing形式）；怒吠
1.They'll bark, whimper, growl and yawn.
它们会叫、呜咽、咆哮和打哈欠。
2.The lights go off, and the din of the tourists turns from a momentary grumble of protest to a greedy growl to whispered disappointment.
灯光熄灭了，一时间游客的噪声从短暂的抗议的抱怨声变成了贪婪的咆哮声，接着变成了失望的低语声。
3.His voice deepened to a growl.
他的声音变成了低沉的怒吼。
4.Some can again hear the tiger's growl.
一些国家再一次听到了虎啸。
5.He understood mama's growl.
他能懂妈妈的怒吼。
6.It is in the American housing market that the bear may growl loudest.
灰熊闹得最凶的地方将是美国的住房市场。