be good at的高级替换

be good at是擅长于什么，它的 高级替换词:have a good command / grasp of

例如，Besides， I have such a good command of English that I am elected a volunteer.

另外还有be skilled in，在…方面熟练擅长精通。

例句：A process is required for this and managers must be skilled in using it.