“概括地”造句

我们的历史教师总爱概括地讲, 从不详述任何史实.
Our history teacher is always generalizing; he never deals with anything in detail.

他概括地说了整个情况.
He had put the whole situation in a nutshell.

有必要概括地讲一下有关的高斯公式.
It will be useful to summarize the relevant Gaussian formulae.