That's because objects in the real world just don't fit into a simple single inheritance hierarchy.

那是因为实际世界中的对象不会刚好适合一个简单的单继承层次结构。

youdao

This is necessary because unlike a real jigsaw or a machine-shredded document, in which the pieces fit perfectly, the shreds of a torn document are slightly distorted and frayed at the edges.

这个过程是必须的，因为这不是真的拼版和用碎纸机粉碎的文档那样碎片可以完美的拼合，撕碎的文档碎片的边缘会有轻微的变形和磨损。

youdao

Although guidance for navigating workflows is included with RUP, it may be inapplicable or only a partial fit in real projects.

尽管RUP中带有对工作流程的指导，但是它可能在真实的项目里并不适用或者只是部分适用。

youdao

Really a shame, because he would offer them a real alternative up front if he were fit and putting in the effort.

FORBES: While Fans Argue About Money and Wenger, What Happened To Arsenal's Bright Young Players

The experience of Fred Witt, a fit 58-year-old national director of real estate tax services at Deloitte Tax in Phoenix, mirrors many men's trouser trials.

WSJ: The Pleats Plea: Wear These

Despite Real Madrid possessing a big squad of high profile stars, Raul was always in the starting eleven when he is fit.

BBC: Sport