Yabla video uses of

浸泡 jìnpào
guò
shēn
溶液 róngyè
de
蜡烛 làzhú
diǎn
然后 ránhòu
马上 mǎshàng
huì
释放 shìfàng
chū
毒气 dúqì
Candles that have been soaked in arsenic will immediately release poisonous gas after being lit.