1、A more serious charge against van loon was the sloppiness of his scholarship.
對房龍的一項更嚴肅的指控是他在學問上的馬虎。

2、Failures caused by sloppiness or laziness are bad.
因馬虎或懶惰導致的失敗是壞事。

3、I read the paper and call it crap by virtue of the sloppiness of the work.
我讀完認為這篇論文是垃圾的原因 是因為這根本就是一項馬虎的研究.