He wants to improve his spoken English under the guidance of a British teacher.
他想在一位英国老师的指导下提高他的英语口语。
2
I am emailing you in the hope of studying English under your guidance as a graduate student.
我给您发电子邮件是希望能成为您指导下的一名英语专业硕士研究生。
3
It does not prescribe what a user of English must or must not write or say, but gives sufficient guidance for the reader to make his or her own decisions.