The revenue from tourism is the biggest single item in the country's invisible earnings.

旅游收入是该国非贸易性收益中最大的单项收入。

The computer was my largest single item of expenditure.

电脑是我花钱最多的一件东西。

This single item will suffice to typify all the rest.

即此一端， 可概其余。

Not a single item in it, was made in America.

上面没有一件东西是美国造的。

On a photo page a single item is displayed in detail.

在相片页面上单个项目会显示以详细的信息。