閃光詞彙及詞組：
extensive: adj.廣泛的
polish: v.使…更好
relevant industry:相關行業
spare time:空閒時間
ensure: v.保證
commitment: n.許諾
enclose: v.附寄
萬能句型：
i am writing in response to your advertisement for…
the main reason for my confidence in this position lies in…
i have much spare time this semester, which can ensure my time commitment for the internship.
please find more details in my enclosed resume.
thank you for your time and patience, and i would greatly appreciate it if you could grant me an interview.