In summary, manual testing fills a gap in the testing repertoire and adds invaluably to the software development process.

总而言之，手工测试弥补了测试一览表之间的空白，对软件开发过程增加了极大价值。

youdao

The computer is an invaluably remorseless master: harsh, sometimes to the point of causing you to tear your hair out, but never unfair.

计算机可以说是一位铁面无情的大师：严酷，有时甚至会让你抓狂，但绝对公平。

youdao

And perhaps most invaluably, Weamer prints extensive interviews with Upper Delaware guides, where they dish on their preferred flies, techniques and methods.

FORBES: Catskills Fly Fishing Book