Eternod's sinus
[医] 埃特诺氏窦(绒膜与卵黄囊之间的血管袢)
🧩 词语组成解析
n. 窦, 静脉窦, 凹陷处
🗣️ 情景例句
OK. I'll be back in a few minutes.
好，过几分钟我就回来。
There is no smoke without fire.
无风不起浪。
She arrived in England a week after the Thermopylae.
它抵达英国时比“塞姆皮雷”号晚了1个星期。