To double-glaze a window or door is to fit it with two separate sheets of glass and a space between them. That trapped air (sometimes a special gas) helps keep heat in and street noise out.

To double-glaze a window or door幫窗戶或門double-glaze（裝雙層玻璃） is to fit it with two separate sheets of glass就是幫它裝上兩片分開的玻璃 and a space between them中間留一個空隙。That trapped air那被困住的空氣 (sometimes a special gas)（有時候是特殊氣體） helps keep heat in能幫忙把熱留在裡面 and street noise out把街上的噪音擋在外面。

You double-glaze a house; what you then have is double glazing — the windows themselves.

You double-glaze a house你對一棟房子double-glaze（裝雙層玻璃）之後; what you then have你擁有的 is double glazing就是double glazing（雙層玻璃） — the windows themselves也就是那些窗戶本身。

Very common in cold or noisy places, and in British English especially. American English more often talks about double-pane windows, same idea.

Very common in cold or noisy places在寒冷或吵鬧的地方非常常見, and in British English especially尤其是在英式英文裡。American English more often talks about double-pane windows美式英文比較常講double-pane windows, same idea指的是同一個概念。

The verb is the job (what you do to the window); the two-sheet glass is the result.

The verb is the job動詞形式指的是這個動作 (what you do to the window)（你對窗戶做的事）; the two-sheet glass is the result雙層玻璃這個東西，則是結果。

Though actually, it is not a second coat of shiny glaze, like on a pot or a cake. It is glass, twice, with a gap.

Though actually不過其實, it is not a second coat of shiny glaze它指的不是再多刷一層亮亮的釉, like on a pot or a cake像陶罐或蛋糕上那樣。It is glass, twice, with a gap它就是玻璃，兩片，中間留一道縫。