a thick , flat piece of a solid substance , such as stone , wood , metal , food , etc ., which is usually square or rectangular
发音
例句
1. This heavy slab of oak now stood between the bomb and Hitler. 这时笨重的橡木厚板就横在炸弹和希特勒之间了。 2. The monument consists of two vertical pillars supporting a horizontal slab. 这座纪念碑由两根垂直的柱体构成,它们共同支撑着一块平板。