lacunae

例句：

1. 1. The book has many lacunae that need to be filled in.
   这本书有很多空白需要填补。
2. 2. The scientist found a lacunae in the data that needed to be addressed.
   科学家在数据中发现了一个需要解决的空白。
3. 3. The artist created a series of lacunae in the painting that added depth and emotion.
   艺术家在画作中创造了一系列的空白，增加了深度和情感。