... memberIlifea tale of LA gang lifeIrape• PREP.ina/the-Wewereinthesamegang. I-ofagang of skin heads• PHRASES a member of a gang 2 group of friends• PREP. - of Youprobably go with a gang offriends ... houses below.• PHRASEScentre of gravity(often figurative) Europe'seconomic centre of gravity shifted northwards.the force of gravity, the law/laws of gravity 2 seriousness• ADJ.extremeI ... good togetout of the house more often.• PREP. for sb/sth's -When the prime minister's healthproblems continued, he resigned for thegood of theparty.• PHRASESa force for goodIn disadvantaged...