Fcfs
先来先服务法
🗣️ 情景例句
Now for the hard part.
现在到了最难的部分。
Please try to be congenial and welcome the guests with a small.
请用笑脸愉快地迎接客人吧。
As long as all was still, the pen drew a straight line,
只要一切都是静止的，笔就会划出一条直线；