The reasons need to be further studied.

其原因有待进一步研究。

youdao

Finally, several problems that need to be further studied are pointed out.

最后，本文指出需要进一步深入研究的几个问题。

youdao

We did note that the roles of others need to be further studied and established.

我们也指出其他人的作用仍有待研究和确定。

youdao

Eliminating the bacteria has helped increase platelet count in some people, but the results for this therapy are inconsistent and need to be studied further.

CNN: Idiopathic thrombocytopenic purpura (ITP)

The results, published online in the journal mBio by researchers at Columbia's school of public health, need to be studied further, but suggest Sutterella may be important in understanding the link between autism and digestive ailments, the authors wrote.

WSJ: A Gut Check for Many Ailments