Simple quad
[电] 单线组
🧩 词语组成解析
quad
[kwɔd]
n. 四倍;空铅;（大学的）四周有建筑物围绕的方院;四胞胎之一;
vt. 在…填补空铅;
🗣️ 情景例句
I'll go upstairs and stay with him until he falls asleep again.
我上楼去陪他， 直到他又睡着。
Stayed up late
熬夜
Though in those days, traveling was not as easy as it is today,
尽管在当时旅行不像现在这么容易，