Accident signaling system
[机] 意外号志系统
🧩 词语组成解析
n. 发信号；打信号
🗣️ 情景例句
There has been very little progress this term.
这学期没有什么进步。
The thunder claps really scare the children.
打雷的声音真的会吓坏小孩子的。
Sometimes, my grandma decides to buy one big birthday present for both of us.
有时，奶奶决定给我俩就买一件大生日礼物。