掌握单词和短语的英文表达可以是 "master words and phrases" 或者 "learn words and phrases"。
来源方面，"master" 这个词来自拉丁文 "magister"，意思是 "teacher" 或者 "expert"。"Learn" 这个词来自古英语 "leornian"，意思是 "gain knowledge" 或者 "become skilled in something through study or experience"。
下面是一些例句：
She has mastered several languages, including French, Spanish, and Itapan. (她掌握了几种语言，包括法语、西班牙语和意大利语。)
He learned how to play the piano when he was a child. (他小时候学会了弹钢琴。)
希望这些信息对你有帮助。
来源方面，"master" 这个词来自拉丁文 "magister"，意思是 "teacher" 或者 "expert"。"Learn" 这个词来自古英语 "leornian"，意思是 "gain knowledge" 或者 "become skilled in something through study or experience"。
下面是一些例句：
She has mastered several languages, including French, Spanish, and Itapan. (她掌握了几种语言，包括法语、西班牙语和意大利语。)
He learned how to play the piano when he was a child. (他小时候学会了弹钢琴。)
希望这些信息对你有帮助。