Nigra line
[医] 黑线(白线在妊娠时因色素沉着而变成)
🧩 词语组成解析
[医] 黑质
line
[laɪn]
n. 线条;排;行列;界线;
vt. 排队;用线标出;沿…排列成行;给…安衬里;
vi. 形成一层;排队;击出平直球;
🗣️ 情景例句
No, I haven't. Would you show me where that is?
不，没去过。你可以告诉我去哪里吗？
The theory may hold water.
这理论可能行得通。
The sandwiches are all ready, said her mother. I made some dumplings last night, too!
“三明治全都做好了，”她妈妈说，“昨晚我还做了一些饺子哩！”