Callboard
n. 通告板
🗣️ 情景例句
How long is this flight?
这趟飞行有多长时间？
First think,and then speak.
动口先动脑。
This caused the construction of gigantic buildings where too large masses of human beings are crowded together.
这样就导致了许多摩天大厦拔地而起，大厦内众多的人挤在一起。