73 - circulate, circulation etc.
73.1 circulate ( v. ) 傳播, 傳遞, 循環
Hot water circulates through the heating system.
73.2 circulation ( n. ) 流傳, 發行量, 血液循環 /
circular ( n. ) 同時送達多人的印刷信函
The paper has a circulation of 150,000.
73.3 circulatory 血液循環的
73.4
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