Was the stone a common one in fact?

事实上，这块石头是普通的一块吗？

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Just as a keystone holds together a stone arch, Pennsylvania was seen as holding together the young American republic.

VOA: special.2009.08.23

who was refuted by Dr. Johnson who kicked a stone and leaped away in terrible pain saying, "I refute it thus."

约翰逊先生反对理想主义者，他踢开一块石头,跳开到很远，一副痛苦不堪的样子，说，“我这样来反驳“

耶鲁公开课 - 文学理论导论课程节选

Agricultural villages will have existed all over the place in the late Stone Age, in the Neolithic Period, as it is known. But there is a difference and the critical difference is that a city contains a number of people who do not provide for their own support.

农业村庄在石器时代后期,以及新石器时代随处可见,但二者是有区别的,最重要的区别在于,城市能容纳,相当数量,无需自给自足的人口

耶鲁公开课 - 古希腊历史简介课程节选

After enrolling at the academy in North Carolina Ms Davis lost nearly half a stone a week.

BBC: Georgia Davis

First, since medicine advances too fast for any politician to keep up, the reformers will cast in stone a set of standards that will be out of date before they are even passed into law.

ECONOMIST: Patients or profits?

Mr Bevan said despite not entering the record books, the show had clocked a cabbage weighing 37kg (5 stone 12lb), a marrow at 50kg (7 stone 12lb) and a pumpkin at 133kg (20 stone 13lb).

BBC: Clive Bevan