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英语四级同义词50组（9）

　　在学习英语词汇中，有时同义词的辨析是很不容易的，我们一般从三方面进行区分，即：语法、语义和文体。语法主要是词性、搭配、句式等的区分;语义主要是词义的本义、引申义、比喻义和内涵和外延等的区分;文体主要是正式和非正式、褒义和贬义等的区分。

　　9.旋转 turn: The most general one.

　　spin: To turn quickly around a central point.

　　It emphasizes the continuity of the action, and usually the narrow extent of

　　the circular motion.

　　The wheel is spinning on its axis.

　　whirl: To round very fast.

　　It implies the lock of conscious control.

　　The leaves whirl in the wind in the yard.

　　rotate: To turn round a fixed point with a circular movement.

　　The earth rotates once every 24 hours.

　　revolve: To turn or move in a circle around a central point.

　　It indicates circular or elliptical movement.

　　The planets revolve around the sun.

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