of which的用法及例句

The cell is the unit of which all living organisms are composed.

細胞是構成一切生物的`單位。

The trip was magical; the stuff of which dreams are made.

那是一次奇妙的旅行，宛如夢境。

I saw three camp beds, two of which were occupied.

我看見了3張摺疊牀，其中兩張已有人佔了。

Many theories on punishment exist, all of which are variations on a theme.

關於懲罰的理論有很多，雖形式略有不同，但其主旨都是一樣的。

We are dealing with an epidemic the likes of which we have never seen in this century.

我們面臨的疫情規模在本世紀尚屬空前。