He fixed the rod firmly against the bank and stood to stretch himself.

他把鱼杆牢牢地固定在河岸上，站起来，伸了伸了腰。

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His attention was firmly fixed on the road ahead.

他的注意力都放在前方的道路上。

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The knob was fixed on the door firmly.

把手牢牢地安装在门上。

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The knob was fixed on the door firmly.

把手牢牢地安装在门上。

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