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1·Leave or stay?He is between two fires.

离开还是留下？他左右为难。

2·They decided to retreat lest they would be between two fires.

他们决定退却，否则就要受两面夹击。

3·An observer, a dreamer, the author of this book, who had gone to get a near view of this volcano, found himself in the passage between the two fires.

一个观察者，一个梦游人，本书的作者，曾去就近观望火山，被两头的火力夹在那过道里。