The cud of grass can stay a long time in the cow's stomach.

这些反刍的草在牛的胃里能停留很长时间。

The cow is leisurely chewing cud in the barn.

这头牛悠闲地在牛棚里咀嚼着反刍的食物。

The cud-chewing animals on this farm are all infected with strange diseases.

这个农场里反刍的动物都感染了怪病。

He sat for a moment chewing the cud before he spoke.

他坐着沉思了片刻才开口说话。

After retirement, he has enough time to chew the cud of his past.

退休以后，他有足够的时间来回想回想过去。

The cow in the nearby field was still chewing placidly on its cud.

附近地里的牛仍在安静地反刍食物。

I will no longer chew the cud of misfortune that Fate ekes out to us.

我将不再反复地思考命运给我们的不幸。

She did not reply immediately, but seemed rather to be chewing her cud.

她没有立刻回答，不过看上去在仔细考虑。