In most low-income countries, especially in Africa, the magnitude of the problem is unknown, as this form of TB is so difficult to diagnose.

在大多数低收入国家，特别是在非洲，由于这种形式的结核病难以诊断，问题的严重程度尚不得而知。

youdao

It is a world difficult problem that the protein feed is insufficient, so developing compound protein feeds is one of the effective ways to solving this problem.

蛋白质饲料不足是世界性难题，研制复合蛋白饲料是解决这一问题的有效途径之一。

youdao

In addition, by analyzing the difficult problem on "You are a vessel" and "not mere vessel", we come to recognize that this so-called poser maybe not exist.

另外，通过对《论语》中“汝器”与“不器”的难题略作分析，我们认为这个所谓的难题也许并不存在。

youdao

My own response to this problem would be to loosen the regulations that make employing that surplus labour so difficult.

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