Protrusion
[prə'truːʒn] or [pro'truʒn]
解釋/意思:
(n.) The act of protruding or thrusting forward, or beyond the usual limit.
(n.) The state of being protruded, or thrust forward.
整理:玛丽
同義詞及反義詞：
SYN:Projection, protuberance, convexity, tongue
ANT:recess, cavity, hollow, concavity, mouth
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