By Gertrude Chavez-Dreyfuss NEW YORK (Reuters) – The Japanese yen bounced from a fresh two-decade low on Wednesday after the Bank of Japan stepped into the market again to defend its ultra-low interest-rate policy, drawing a sharp contrast with the Federal Reserve’s aggressive tightening path. Increased nervousness around verbal intervention and growing speculation around an impending bilateral meeting between U.S. Treasury Secretary Yellen and her Japanese counterpart also prompted traders to pare back short bets on the yen. The U.S. dollar hit 129.43 yen on Wednesday for the first time since…