noun🔗Share水印, 戳记 A translucent design impressed on the surface of paper and visible when the paper is held to the light."I held the official certificate up to the light and could see the university's watermark, proving it was genuine. "我把官方证书对着光举起来，看到了大学的水印，证明它是真的。materialmarkwritingChat with AIVocabulary GamePractice Reading
noun🔗Share水印，防伪标记。 (by extension) A logo superimposed on a digital image, a television broadcast, etc."The company's logo was a small watermark on all their marketing materials. "这家公司的logo是所有营销材料上都有的小小水印防伪标记。mediatechnologycomputinginternetmarkChat with AIVocabulary GamePractice Reading
noun🔗Share水印，数字水印 A value stored in a datafile to ensure its integrity, so that if the file's contents are changed then the watermark will no longer match the contents."The document had a watermark to prevent it from being altered. "这份文件添加了数字水印，以防止被篡改。technologycomputinginternettechnicalChat with AIVocabulary GamePractice Reading
noun🔗Share水位线， 水痕。 A mark indicating the level to which water has risen."After the heavy rain, the watermark on the basement wall showed how high the floodwater had reached. "暴雨过后，地下室墙上的水痕显示了洪水曾经达到的高度。environmentweathermarkChat with AIVocabulary GamePractice Reading
verb🔗Share加水印，做水印。 To mark paper with a watermark."The printer operator carefully watermarked the important documents to prevent forgery. "打印机操作员小心地给重要的文件加盖了水印，以防止伪造。markstationerywritingmediatechnologyChat with AIVocabulary GamePractice Reading
verb🔗Share加水印，添加水印。 To mark a datafile with a digital watermark."The photographer watermarked the digital images of the family portrait to prevent unauthorized copying. "这位摄影师给家庭合影的数码照片加了水印，以防止未经授权的复制。technologycomputingmarkinternetChat with AIVocabulary GamePractice Reading
