他向后看了一眼,确认没有人跟踪他。

He took a backward look to make sure no one was following him.

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He took a backward look to make sure no one was following him.

backward 是由 back(后面)和 -ward(表示方向的后缀)组成的形容词,意思是"向后的"或"朝后的"。在这里描述的是"向后看"的动作方向。

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