Douglas' line
[医] 道格拉斯氏线, 半环线
🧩 词语组成解析
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
Good morning, sit down please.
早安，请坐。
Better an egg today than a hen tomorrow.
前程虽远大，现实尤可贵。
I learnt that I had passed the test.
我获悉我测验及格了。