The correct English translation of "重五公斤" is "weighs five kilograms".
When translating the phrase, "重" means "weigh" or "weight", and "公斤" is the Chinese unit for kilograms. So, when we combine these words in English, we get "weighs" to indicate the action of measuring weight, and "five kilograms" to represent the specific amount.
In summary, "重五公斤" in English is "weighs five kilograms", indicating the weight of an object.