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piir n stresses
gen.	граница; грань; межа; предел; рубеж; черта
environ.	граница (Разделяющая линия или рубеж между политическими или географическими регионами)
piir- n
gen.	предельный

piir: 5 phrases in 4 subjects

Construction	1
General	2
Mathematics	1
Microsoft	1