天气若不很冷，我总开着窗户睡觉。

I sleep with the window open unless it's really cold.

《牛津词典》

热水器要是总开着，煤气费就很高了。

You'll run up a huge gas bill if you leave the heater on.

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为了搞清楚这些问题，科学家们把小白鼠放在一个总开着灯的房间里。

To find out, scientists housed mice in a room where the lights were always on.

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我们并不总让这些马达和泥浆泵开着。

We do not keep these motors and mud pumps on all the time.

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我们并不总让这些马达和泥浆泵开着。

We do not keep these motors and mud pumps on all the time.

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