language of instruction

基本解释

Many parents and employers had called for English to be retained as the language of instruction.
许多家长和雇主要求恢复用英语教学。
Teachers sometimes could barely speak standard Mandarin, which, in theory, is the language of instruction.
有时，老师们还不能用标准的普通话授课。
Schools must provide instruction in the learning of a language other than the principal language of instruction of the school from the age of at least seven.
学生从七岁（至少七岁）开始，学校必须为其提供学校主体教学语言之外的其他一种语言的学习指导。

Candidates must be proficient in reading and writing the language of instruction in the proposed country of study.
UNESCO: Sources
And most black children came from poor, ill-educated families where English, the main language of instruction, was not their mother tongue.
ECONOMIST: South Africa's education system
Schools that work towards inclusion find ways to assist migrants with language deficits but to encourage integration in the dominant language of instruction as soon as possible.
UNESCO: Social and Human Sciences