A patchwork quilt is a good way of using up scraps of material.

做杂拼花布棉被是利用零布料好办法。

My knowledge of science is patchy.

我科学知识是零零。

Two new ways to patch the oddments together and distinguish genuine from false information are reported this week.

本周，科学家报道了两种可以将这些零息整合起来，同时，能够从错误息中筛选出息新方法。