no obj.
1- (of an animal, especially a dog) make a low guttural sound of hostility in the throat（动物, 尤指狗）发出狺狺声, （自喉咙处）发敌意的低吠声：
the dogs yapped and growled about his heels.
狗在他脚边时而狂吠时而低吠。
1.1
- with direct speech(of a person) say something in a low grating voice, typically in a threatening manner（人）低声咆哮着说, 恶狠狠地威胁：
'Keep out of this, ' he growled.
“别插手此事,"他恶狠狠地威胁道。
1.2
- (of a thing) make a low or harsh rumbling sound, typically one that is felt to be threatening（事物）发轰隆声：
thunder growls without warning from a summer sky.
夏日的天空中突然雷声隆隆。
1
- a low guttural sound made in the throat, especially by a dog（尤指狗发出的）狺狺声, 低吠。
1.1
- a similar sound made by a person, especially to express hostility or anger（人发出的）低沉的怒吼; 咆哮。
1.2
- in sing. a low throaty sound made by a machine or engine（机器或引擎发出的）轰隆声：
the growl of diesel engines.
柴油机引擎的轰隆声。
派生词
growlingly
adverb词源
mid 17th cent.: probably imitative.