Heister's valves
[医] 海斯特氏瓣(胆囊颈螺旋瓣)
🧩 词语组成解析
n. 阀门；真空管；瓣膜（valve的复数）
🗣️ 情景例句
Do you hear something?
你听到什么了吗？
Pleasant hours fly fast.
欢乐的时间过得快。
If, at the time, the British had not feared invasion, it would have been completed.
如果不是因为那时英国人害怕入侵，隧道早已建成了。