sound grasp的用法和樣例：
例句
- The the underlying meaning of the peom is beyond his grasp.
這首詩的內在含義超出了他的理解範圍。 - Mr Brown was a long-serving chancellor of the exchequer and IMF junkie whose grasp of international finance is widely acknowledged.
布朗先生長期擔任財政部長，且他作為世界貨幣基金組織的行家裡手，其對國際金融的理解把握是廣泛公認的。
