Meckel's stalk
[医] 美克耳氏柄(卵黄囊基部残留物)
🧩 词语组成解析
stalk
[stɔk]
n. [植]茎，秆;叶柄，花梗;高视阔步;偷偷接近，潜随;
vt. 追踪，潜近;高视阔步;
vi. 高视阔步地走;潜近，偷偷接近;
🗣️ 情景例句
Who's Charley Rafer?
谁是Charley Rafer？
Curzon Street? Isn't Mary living there?
可胜街？玛丽不是也住那儿吗？
It is not a simple competition for a fixed amount of food determined by the physical environment,
它已不是为了争得物质环境所决定的有限食物而进行的简单竞争了，