a part of something that is separate from the other parts or can be considered separately 部分；份；片；段 She cleaned a small segment of the painting. 她擦干净了这幅画的一小部分。 Lines divided the area into segments. 这一地区用线条分成了若干部分。 The changes will affect only a small segment of the population. 这些变化只会影响一小部分人口。 They divided the bone into equal segments. 他们把骨头分成相等的部分。
one of the sections of an orange, a lemon, etc. （柑橘、柠檬等的）瓣 
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geometry 几何 a part of a circle separated from the rest by a single line 弓形；圆缺 
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phonetics 语音学 the smallest speech sound that a word can be divided into 音段
Word Originlate 16th cent. (as a term in geometry): from Latin segmentum, from secare ‘to cut’. The verb dates from the mid 19th cent.