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四 sì
gen.	quadr-; quaternity; tetra; quart-; tetr-
avia.	quaternion (个)
pref.	quadri-; quadru-
sport.	four
taekwondo.	neht; net
telecom.	tetra-
四 γ
gen.	tetragamma
四 π
gen.	four-pi
四倍 sì
gen.	quadr-; quadr___ i- u-
四个 sì
gen.	four; quaternion
〔拉丁语〕 四 sì
gen.	quatuor
构词成分四 sì
anim.husb.	quadri-
意大利语四表示一辆汽车有四轮驱动 sì
auto.	quattro
四元，价，成分 sì
gen.	quaternary (的)
构词成分四 sì
anim.husb.	tetra-
〈词头〉四 sì
plast.	tetra
Chinese thesaurus
四 sì
instead.	肆

四: 12217 phrases in 187 subjects

	1
Acrobatics	2
Advertising	25
Agriculture	569
Aikido	2
Air defense	52
Anatomy	12
Animal husbandry	196
Antennas and waveguides	1
Archery	2
Architecture	85
Armored vehicles	1
Artificial intelligence	7
Athletics	8
Australian	2
Automated equipment	1
Automobiles	344
Aviation	105
Badminton	1
Baseball	21
Basketball	11
Billiards	4
Biochemistry	1
Biology	96
Biotechnology	4
Bodybuilding	6
Botany	14
Bowling	5
Bridge card game	17
Bridge construction	30
Business	69
Cartography	3
Chemistry	1088
Chess	12
China	15
Commerce	20
Communications	12
Company name	3
Compressors	11
Computer networks	5
Computer numerical control	2
Computers	10
Construction	31
Consulting	3
Corporate governance	3
Croquet	2
Cryptography	10
Cytogenetics	21
Dancing	4
Dentistry	6
Dermatology	41
Desert science	73
Doping	5
Drilling	53
Earth sciences	79
Ecology	19
Economy	71
Electric machinery	43
Electronics	461
Engineering geology	25
Entomology	12
Environment	3
Equestrian sports	3
Exhibitions	9
Explosives and Explosive Ordnance Disposal	21
Fencing	10
Figure skating	4
Finances	22
Fish farming pisciculture	1
Fishery fishing industry	1
Food industry	3
Food service and catering	3
Football	25
Forestry	4
Furniture	2
Gambling	1
General	2245
Genetics	63
Geography	3
Geology	37
Geophysics	12
Golf	13
Gymnastics	11
Handball	6
Heavy equipment vehicles	2
Horticulture	1
Hydroelectric power stations	47
Hydrology	2
Ichthyology	23
Idiomatic	1
Informal	1
Information technology	74
International Monetary Fund	29
International trade	19
Japanese language	2
Judo	17
Karate	4
Korean	1
Labor law	4
Laboratory equipment	1
Latin	98
Law	1
Librarianship	10
Life sciences	47
Logistics	4
Management	4
Materials science	1
Mathematics	37
Mechanic engineering	2
Mechanics	3
Medical	7
Metallurgy	529
Microbiology	2
Military	2
Mining	3
Molecular genetics	5
Morphology	1
Multimedia	13
Music	2
Mycology	1
Name of organization	4
Nautical	9
Navigation	1
Nursing	23
Oil / petroleum	310
Oil processing plants	1
Otorhinolaryngology	5
Perfume	142
Pest control	2
Pharmacology	642
Physics	4
Piezoelectric crystals	2
Plastic surgery	8
Plastics	175
Polo	3
Polygraphy	24
Polymers	124
Poultry farming	1
Production	1
Project management	10
Quality control and standards	2
Racing and motorsport	8
Radio	4
Rail transport	19
Refrigeration	19
Reproductive biology	60
Roll stock	1
Rowing	29
Rugby football	18
Sailing ships	1
Securities	14
Selective breeding	1
Semiconductors	1
Shipbuilding	21
Shooting sport	4
Skiing	3
Skydiving	6
Space	177
Sports	91
Statistics	36
Steel production	16
Sumo	2
Superconductivity	1
Surgery	26
Swimming	5
Table tennis	3
Taekwondo	1
Technology	2241
Telecommunications	136
Tennis	2
Textile industry	246
Tools	1
Trademark	1
Transport	1
Typography	2
United Kingdom	2
United Nations	23
Veterinary medicine	4
Volleyball	17
Water polo	4
Water resources	109
Weightlifting	2
Welding	1
Wind Energy	17
Wood processing	4
Wrestling	4
Wushu	1