1. You can answer whether you mastered the instrument recently or when you were young. 2. You can also provide additional context, such as how you learned it, any challenges faced, or the motivation behind learning it.

1. 你可以回答你是最近掌握了這個樂器還是年輕時掌握的。 2. 你也可以提供額外的背景，例如你是如何學習的、面臨了哪些挑戰，或是學習它的動機。