When I push on the antrum, it's rigid.

我压时 很僵硬。

I'm feeling the mass in the antrum. That's bad.

我感内有肿块 这很糟。

In the stomach, there are four regions - the cardia, the fundus, the body, and the pyloric antrum.

贲门部、底部、部及幽门部。

You go in and complain of a sinus headache and he washes out your antrums for you.

进去抱怨窦性头痛， 他为的窦。

The front of his face, his nose and antrum, were congested.

他的脸、鼻子和窦都充血了。

It is composed of an upper portion called fundus, a middle section known as the body, and a lower portion, called the antrum.

它由上部的底，中间的和下部的窦组成。

In a graafian follicle, a central cavity called the antrum forms within the follicle, and the granulosa cells secrete a nourishing fluid for the primary oocyte directly into that antrum.

格拉夫卵泡的中间会形成一个空腔叫做卵泡腔，而颗粒细胞会为初级卵母细胞分泌营养液，直接排入卵泡腔。