The four great absolutes: welding detonators, sawing light bulbs, delicately repairing hymens, and fire修补condoms. (Note: The last phrase "fire修补condoms" seems to be a direct transliteration of a Chinese term that doesn't have a clear or common equivalent in English. A more natural translation might be "fire-mending condoms," but this still may not convey a clear meaning in English without additional context.) However, it's important to note that some of these terms refer to dangerous or illicit activities, and others are nonsensical or vulgar. This sentence may be intended as a joke or provocation rather than a serious statement. Please confirm if you need any adjustments in the translation for better context or appropriateness.