In theory, these machines should last for ten years or more.

从理论上讲，这些机器应能用十年以上。

《牛津词典》

The past ten years have dealt a series of blows to efficient-market theory, the idea that asset prices accurately reflect all available information.

过去十数年间已有多次对有效市场理论的打击，该理论认为资产价格是所有可得信息价值的准确反映。

youdao

An expert on the theory of chess, he proceeded to teach little Zsuzsa at home, spending up to ten hours a day on the game.

他擅长国际象棋理论，小苏珊（Zsuzsa）刚出生他就便在家中教她下棋，每天最多要花上十个小时。

youdao

Anything that is not on a goods-review list should, in theory, automatically be passed within ten days.

ECONOMIST: Sharpening sanctions

The theory of Lagrangian coherent structures was started about ten years ago by George Haller, who was then at Brown University, in Rhode Island.

ECONOMIST: Lagrangian coherent structures

If ten people each own one of those acres, in theory five could build on their land in exchange for promises of conservation in perpetuity from the other five.

ECONOMIST: An exchange for species rather than stocks