Hegar's dilators
[医] 黑加氏子宫颈扩张器
🧩 词语组成解析
(dilator 的复数) n. 详述者, 扩张器, 扩张肌\\n[医] 扩张器, 扩张肌, 开大肌
🗣️ 情景例句
In addition, it's great exercise too, since we do a lot of hiking.
还有，那也是个好的运动，因为我们要长距离徒步旅行。
To hover
盘旋
What day was it yesterday?
昨天是星期几？