Clavus syphiliticus
[医] 梅毒性钉胼, 梅毒性鸡眼
🧩 词语组成解析
n. 垂直紫条, 鸡眼
🗣️ 情景例句
How about tomorrow?
明天怎么样？
How thick is the ice here?
这儿的冰有多厚？
so every so often a sample is obtained with a coring bit.
因此时常要用取芯钻头取样。