数字4 (手语)
各模型训练数据截止时该标签已有的作品数——用于估计模型对该标签的掌握程度，与我们是否有配图无关。
The gesture for number four (4) as in ASL (American Sign Language). All fingers are raised, except for the thumb, and the fingers are normally spread.
4 个模型中有 3 个
