And the use of English constantly puts limits on the quality of instruction. For the instructors, it's never going to be as easy to speak precisely or cite examples in English as it is in Chinese. And when neither the teachers nor the students completely understand each other, the problem of words not being able to convey exact meaning can become very frustrating.
至於授課品質，用英語也處處受限，例如要說明細微處或舉例時，總不如用中文這麼通透，特別是當師、生雙方的英文都不甚了了時，那種辭不達意的窘狀，就更令人挫折了。