phosphorus
🇺🇸
/ˈfɑːsfərəs/
🇬🇧
/ˈfɒsfərəs/
Phosphorus is a chemical element that can exist in various forms. One form is a pale yellow, poisonous substance that glows in the dark and catches fire when exposed to air.
The matchstick contains phosphorus, which is responsible for the glow when it's struck.
火柴含有磷,這是它划燃時發光的原因。