After stumbling to the end of a smoke-filled corridor, you have to choose whether to turn left or right.

在跌跌撞撞地爬到充满烟雾的走廊尽头后，你不得不选择向左拐还是向右拐。

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Shall we turn left or turn right?

我们应该向左走，还是向右走？

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Brain activity was as rats ran along a T-shaped maze, in which they had to learn to turn left or right in response to a sound.

脑活动是当老鼠走T型迷宫时，它们不得不左转或者右转的声波的反应。

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The project is partly-funded by the U.S. military and has taken the hand-signals already used by soldiers as inspiration for the symbols on the vest -- such as stop, run, turn left or turn right.

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To use a different metaphor, the Federal Reserve is like the team captain on a bobsleigh, he or she can turn the sleigh left or right a bit or put on and release the brakes, but he or she cannot make the sleigh go uphill.

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As the rats approached the decision point, they heard a tone indicating whether they should turn left or right.

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