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
I'll give her your best wishes,
我会转告她你的祝福，
It's up to you.
一切由你决定。
The world had to wait almost another 100 years for the Channel Tunnel.
世界不得不再等将近100年才看到海峡隧道竣工。