Treadboard
n. 踏板
🗣️ 情景例句
How long is it going to take for me to get there?
到那里还需要多久时间
Every time the sheep bleats it loses a mouthful.
羊每叫一次，就少吃一口。
Many strange new means of transport have been developed in our century,
本世纪已研制出许多新奇的交通工具，