《新唐书·列传·卷一百四十九》
现在不控制要津而灭贼，若让他们得机会北上，定会祸害中原。 
今不据要津以灭贼，使得北度，必乱中原。 
If we don't control the strategic area now and eliminate the rebels, if they get the chance to go north, they will definitely cause trouble in central China.
<s>[INST] Translate the following passage from Classical Chinese to both modern Chinese and English, focusing on preserving the emotional tone in both translations: 今不据要津以灭贼，使得北度，必乱中原。  [/INST] Modern Chinese: 现在不控制要津而灭贼，若让他们得机会北上，定会祸害中原。  English: If we don't control the strategic area now and eliminate the rebels, if they get the chance to go north, they will definitely cause trouble in central China.</s>
Translate the following passage from Classical Chinese to both modern Chinese and English, focusing on preserving the emotional tone in both translations: 今不据要津以灭贼，使得北度，必乱中原。
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Modern Chinese: 现在不控制要津而灭贼，若让他们得机会北上，定会祸害中原。  English: If we don't control the strategic area now and eliminate the rebels, if they get the chance to go north, they will definitely cause trouble in central China.
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