What is most noticeable is this cavity, this fluid-filled cavity that begins to develop.

最明显的是这个腔，这个充满液体的腔开始发育。

youdao

Laryngocele is an uncommon disease defined as an abnormal dilatation or herniation of the laryngeal saccule, forming an air-filled cavity.

喉气囊肿是一种少见的疾病的异常扩张或球囊喉症的定义，形成一个充满空气腔。

youdao

In other words, it is ideally suited to take on the challenge of recreating the intricate stress-prone, cavity-filled patchwork of facial bones interspersed with blood vessels and nerves.

换句话说，这个面部骨骼的拼凑物最适合迎接面部重塑的挑战，它具有复杂的压力感应功能，富有腔隙，适于血管和神经长入。

youdao

The cells of this cluster inside next to the fluid filled cavity is a region of the blastocyst called the inner cell mass.

而这簇细胞的内侧,毗邻于充满液体的空腔的一侧,这些细胞在囊胚中称为内群细胞

耶鲁公开课 - 生物医学工程探索课程节选

There's a cluster of cells here, there's a sheet of cells that forms an outer lining, and what is most noticeable is this cavity, this fluid filled cavity which begins to develop.

有一簇细胞,一层细胞构成了外形轮廓,最明显的结构就是这个空腔,这一充满液体的空腔开始发育形成

耶鲁公开课 - 生物医学工程探索课程节选

Many use barter credits as currency, so a plumber who needs to have a cavity filled doesn't need to search for a dentist's office with plumbing problems to make a deal.

CNN: Making no-cash deals with neighbors

Sinusitis is inflammation of the nasal cavity and the sinuses, which are air-filled spaces located primarily in the jaw above the upper teeth and in the forehead around the eyes.

CNN: What can I do for my chronic sinusitis?