Double-line
双线，双轨
🧩 词语组成解析
double
['dʌbl]
adj. 双的;两倍的;两面派的;双人用的;
vt. 使加倍;把…对折;重复;
vi. 加倍，加倍努力;快步走;
adv. 两倍地;双重地;
n. 两倍;双精度型;
doub二，双+le反复 → 反复两倍 → 翻倍
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
It's an album of pictures of the United States:
是关于美国的
Then the whole family sits around the table, feasting and welcoming the first day of the new year.
然后全家围坐在桌旁吃团圆饭，迎接新年第一天的到来。
We may have to back order three items on this order.
这次订的货有三个项目必须要晚点才能交货。