a protuberance on [body part/object]
常指身体或物体表面的具体隆起。
He noticed a small protuberance on the back of his hand.
他注意到手背上有一个小突起。
突起；隆起物
凸起、隆起、肿块、刺或任何突出物。；隆起物；[医] 隆凸
a thing that protrudes; a bulge or swelling
医学术语中指隆凸
凸起、隆起、肿块、刺或任何突出物。
A bulge, knob, swelling, spine, or anything that protrudes.
The geologist noticed an unusual protuberance on the rock face.
地质学家注意到岩石表面上有一个不寻常的隆起。
用法提示：名词，与介词'on'连用表示位置，指岩石表面的隆起物。
The doctor examined the small protuberance on the patient's arm.
医生检查了病人手臂上的小隆起。
用法提示：可数名词，指身体上的肿块或隆起。
The tree's trunk had several protuberances where branches had been cut.
树干上有几处因砍枝留下的隆起。
用法提示：复数形式，指多个隆起物。
常指身体或物体表面的具体隆起。
He noticed a small protuberance on the back of his hand.
他注意到手背上有一个小突起。
指整体的突出状态或特点。
The protuberance of the mountain was visible from afar.
山的隆起从远处可见。
复数形式表示多个隆起。
The surface was covered with small protuberances.
表面布满小突起。
grammar · medium
易错句子The lump protuberances from the surface.
正确表达The lump protuberates from the surface.
中文学习者常把名词 'protuberance' 误用作动词。正确动词为 'protuberate'，表示‘隆起’的意思。
grammar · medium
易错句子There is much protuberance on the skin.
正确表达There are many protuberances on the skin.
'Protuberance' 是可数名词，应用复数形式 'protuberances' 表示多个隆起，并用 'many' 修饰。
protrusion 更强调从表面伸出的部分，而 protuberance 更强调整体隆起的状态或圆形凸起。
bulge 通常因内部压力导致的不规则鼓起，而 protuberance 更指自然或固定的隆起。
bump 常指小而突然的隆起，如碰撞所致，而 protuberance 更正式，可指任何大小和成因。
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