But my mouth can only do one thing at a time. If I speak a lot of English in class, I won't become a good flute player. If I concentrate on the flute, then music class won't improve my English.
但是嘴巴一次只能做一件事，如果要練習說話，笛子一定學不好；認真學笛子，對英語就沒有幫助。