This tool is neither cheap nor useful.

这个工具，既不便宜，也不实用。

youdao

Pleasure then is neither good nor useful.

这样快乐就既非善的亦非有用的。

youdao

Many leaders have fallen back on stereotypes about the generation (see the previous sentence), only to find that they're neither true nor useful in managing.

对于这一代人，许多领导者靠的都是固有印象(请参见前一句话)，结果却发现这些印象要么不对，要么在管理中用不上。

youdao

Non-transferability: According to General Dynamics, the FS-X program transfers neither technology nor methodology especially useful to a Japanese competitor in the commercial aerospace market.

CENTERFORSECURITYPOLICY: The US-Japan FS-X Fighter Agreement: Assessing The Stakes

Nor are inflation indexes useful guides to monetary stability.

FORBES: Alexander Hamilton Got It Right

The implication is that methods and models are neither deity nor demon, but are useful metaphorical accounts of how people can change.

FORBES: There Are No Silver-Bullets in Education Reform