名词
中文翻译：交往
同义词：
['conjugal', 'cohabitation', 'marital', 'sexual intercourse']
例句：
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1. The couple's relationshipis marked by frequent intercourse.
这对夫妇的关系以频繁的性交为标志。
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2. Thestudy of human sexuality is a complexintercourse between science and philosophy.
对人类性行为的研究是科学与哲学之间复杂的互动。
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3.The couple decided to have an open marriagewith no intercourse during the first year.
这对夫妇决定在头一年实行开放式婚姻，期间不发生性交。