a trademark should have statutory constituent elements. Any visible sign that can distinguish the goods of natural persons, legal persons or other organizations from those of others, including words, graphics, letters, numbers, three-dimensional signs and color combinations, and the combination of the above elements, can apply for registration as a trademark. Visually imperceptible trademarks such as sound and smell cannot be registered in China; A trademark should have distinctive features. The distinctive features of trademarks can be obtained in two ways: first, the inherent distinctive features of the logo itself, such as trademarks with novel ideas and unique designs; Second, distinctive features are obtained through use, such as narrative marks that directly describe the quality of goods and other characteristics, and are easy to identify after use, which can be registered as "second meaning" trademarks.