台Taivo A Taiwan Mandarin dictionary

石塊

shíkuài

ㄕˊ ㄎㄨㄞˋ

Simplified 石块

Example

我不知道第三次世界大戰會用哪些武器，但第四次世界大戰中人們肯定用的是木棍和石塊。

wǒ bù zhīdào dì sāncì shìjièdàzhàn huì yòng nǎxiē wǔqì dàn dì sìcì shìjièdàzhàn zhòng rénmen kěndìng yòng de shì mùgùn hàn shíkuài

I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones.

Keep 石塊 and it comes back until you know it.