In fact, most objects you see in a concert hall or theater serve double duty.

事实上，你在音乐厅或剧院看到的大多数物品都有双重功能。

youdao

The strings I've been creating using the single, double, or triple quotation mark syntax are still string objects.

使用单引号、双引号和三引号语法创建的字符串仍然是字符串对象。

youdao

Objects are a double-edged sword.

对象是把双刃剑。

youdao

The objects found in Project Twenty-three could double the size of the research center's collection.

VOA: special.2010.04.07

While making concrete slabs double as displays may prove useful when dressing up those otherwise drab skyscrapers, creating 3D-like images from real objects throws in a much-needed dash of geekiness.

ENGADGET: NICT and Kobe University team up to form "floating visual" 3D display