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性活动 xìng huó dòng stresses
gen.	сексуальная деятельность
med.	сексуальная активность

性活动: 185 phrases in 25 subjects

Astronautics	1
Biology	1
Business	4
Chemistry	2
Construction	1
Education	24
Electronics	3
Environment	1
General	53
Geology	10
Law	1
Medical	25
Military	7
Nautical	1
Oil / petroleum	2
Oil processing plants	4
Psychology	1
Seismology	1
Slang	1
Socialism	2
Sociology	1
Sports	1
Technology	35
United Nations	1
Water resources	2