Red line
红线
🧩 词语组成解析
red
[red]
adj. 红色的;（脸）涨红的;烧红的;红头发的;
n. 红色;红衣服;红颜料;红葡萄酒;
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
Please don't do it without asking.
未经允许请不要那么做。
Keep your mouth shut and your eyes open.
要多看少说。
This time, the policeman lost his temper.
这一次警察火了。