speed board

• 速度牌

speed board的用法和样例：

例句

1. His final card remains on my bulletin board today.
   他最后一次送给我的这张贺卡如今仍保存在我的记事牌上。
2. I put my foot down and the Zephyr gathered speed up the slope.
   我踩大油门，西风牌汽车加速爬上了斜坡。