sole discretion的用法和樣例：
例句
- The Director of Immigration has sole discretion to determine whether an extension of stay will be granted.
入境事務處處長可全權決定是否批准延期逗留。 - Should any batch of Blended Product fail to meet PetroChina's specifications the batch may be rejected or accepted at PetroChina's sole option.
如任何一批調和產品未達到中國石油指定的規格，則中國石油可全權決定拒收或接納該批產品。
