a/the jawbone
jawbone为可数名词，单数形式常与定冠词或不定冠词连用。
The surgeon operated on the jawbone.
外科医生对颚骨进行了手术。
颌骨摇响器（乐器）；上颌或下颌中的任何骨头。；一种摇奏乐器,用动物颌骨制成,摇动时牙齿在牙槽中振动发声。；颚骨
A bone of the jaw, especially the lower jaw (the mandible).
下颌骨。
The bone of the lower jaw; the mandible.
上颌或下颌中的任何骨头。
Any of the bones in the lower or upper jaw.
一种摇奏乐器,用动物颌骨制成,摇动时牙齿在牙槽中振动发声。
A shaken musical instrument (an idiophone) made from the jawbone of an animal and shaken such that the teeth vibrate in their sockets to produce sound.
The dinosaur's jawbone was discovered in the desert.
那只恐龙的颚骨在沙漠中被发现。
用法提示：名词，作为句子的主语，指具体的颚骨化石。
He fractured his jawbone in a cycling accident.
他在一次骑行事故中摔碎了下颚骨。
用法提示：名词，作为宾语，表示受伤的身体部位。
Archaeologists found several jawbones at the excavation site.
考古学家在发掘现场发现了几块颚骨。
用法提示：名词复数形式，作为宾语，指多块骨头。
jawbone为可数名词，单数形式常与定冠词或不定冠词连用。
The surgeon operated on the jawbone.
外科医生对颚骨进行了手术。
复数形式表示多块颚骨。
The fossil consists of several jawbones.
这块化石由几块颚骨组成。
表示属于某对象的颚骨。
The jawbone of the shark is very strong.
鲨鱼的颚骨非常强壮。
grammar · medium
易错句子She broke jawbone in the accident.
正确表达She broke a jawbone in the accident.
英语中“jawbone”是可数名词，需要与冠词“a”连用。
grammar · medium
易错句子He punched me on the jawbone.
正确表达He punched me on the jaw.
“jawbone”指颚骨，而“jaw”指下巴的整体部位，在描述击中下巴时，更常用“jaw”。
jawbone 特指颚骨，是骨骼；jaw 可指下巴整体（含骨骼和软组织）或指下巴部位。
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