Some owners are duplexing their old houses for extra income.

为得到额外的收益，有些房产主正在双倍扩建其旧房。

youdao

The outside doors are sometimes used for advertisement display for extra income.

外机门偶然会用作展示广告以赚取额外收入；

youdao

Greater freedom of movement, she says, is making it easier for traffickers to gain access to the north, where many families lack education and are desperate for extra income.

她说，自由运动的扩大使人口蛮子进入北方更加容易。北方的许多家庭缺乏教育，急需额外的收入。

youdao

In the winter he fed his stock on hay cut and dried on the mountainside, and for a little extra income, he cut timber from the forest and floated it downriver - just as the Krivecs of Perk Farm do today.

BBC: Snowbound Slovenia

He added the scheme would provide extra income for farmers to protect the landscape.

BBC: Farming traditions revived at Stonehenge

It was just extra income for areas where the guides had passion and expertise.

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