The most important issue, of which the Fed is keenly aware, involves the exit strategy for avoiding inflation once the economy has improved and short-term nominal interest rates are no longer zero.
美联储敏锐地意识到：一旦经济改善和短期名义利率不再为零，最重要的问题是涉及避免通货膨胀的退出策略。
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In short, no matter one's interest, any visitor is sure to enjoy his stay in Boston, hearth of American culture and still a leader in education, medicine, and music.