英漢例句權(quán)威例句MAKHACHKALA, Russia (AP) — The two brothers suspected in the Boston Marathon bombings have their ethnic roots in Chechnya, a part of the Caucasus Mountains that has spawned decades of violence — from separatist wars to suicide attacks, blood feuds and hostage sieges.NPR: Russia's Chechnya Has Seen Decades Of War, Terrorboston mountains更多例句