开路先锋

Explanation: Metaphor for an advance team working. 　　Usage: Partial official; as predicate, object; with commendatory 　　Source: Qing Wen Kang, "Heroic Biography" volumes X: "You only the (Spring) back in the body, all the way though not million Maqian Jun arrived about also considered as a vanguard, bodyguards of the warrior."