'But why?' he interpolated.

“但为什么？”他插嘴问。

The lines were interpolated into the manuscript at a later date.

这几行文字是后来加到稿子中的。

These odd assertions were interpolated into the manuscript some time after 1400.

这些零散的断言是1400年后被补充进手稿里的。

He started humming a tune, then interpolated the odd word as though having difficulty remembering.

他开始哼起一个曲调，尽管记得不太清楚，他又插入了几个词。

Then he interpolated and found out water boils at 212.

然后他做了插值，发现水的沸点是212度。