exchange rate level的用法和樣例：
例句
- The real exchange rate was significantly increased with assurance that the new level would be maintained.
由於對維護新的匯率水平很有把握，實際匯率大大提高了。 - The exchange rate weakened to touch the convertibility rate during October 13-15,triggering the Convertibility Undertaking.
匯率在十月十三至十五日期間轉弱，降至兌換保證適用匯率水平，引發兌換保證交易。
