wèile / shēnqǐng / zhèfèn / shíxí / wǒ / qǐng / dǎoshī / bāng / wǒ / xiě / le / yìfēng / jièshàoxìn

为了申请这份实习，我请导师帮我写了一封介绍信。

To apply for this internship, I asked my advisor to write me a letter of introduction.