Sai
abbr. 社会责任国际组织（Social Accountability International）；单指针自动同步指示器（single autosyn indicator）
🗣️ 情景例句
Keep your eyes on the road.
专心开车。
What a coincidence!
真巧！
In the middle of the night, two boys woke up and began shouting.
午夜前后，有两个孩子醒了，大声叫了起来。