Gold is more valuable than iron in price but less useful.

黄金在价格上比铁更值钱但不如其有用。

youdao

If I had not had so much ambition and not tired to do so many things, I probably would have been much happier, but less useful.

如果我不是如此地雄心勃勃，没有努力地做那么多事，我也许可以活得更幸福些，但那样的话我可能不会是个像今天这样有用的人。

youdao

To compensate for this, the least-significant digit is removed from the end of a time difference resulting in a useful, but less specific data point.

为了弥补这个缺陷，从时间差异的末尾中删除最不重要的数位，得到一个有用但特定性较低的数据点。

youdao

Their work there was aimed at separating the light, fissile isotope of uranium (useful for making bombs and reactors), from its more abundant, but less useful, heavy cousin.

ECONOMIST: Diamonds

The offering is proof that while hard partying 20-somethings at start-ups such as Yelp may grab headlines, the new tech boom is creating real money for companies that may be less sexy but more useful.

FORBES: Magazine Article

But he says they are less useful for vegetables, which often carry less harmful bacteria.

BBC: Should you smell food before throwing it away?