oxide
🇺🇸
/ˈɑːksaɪd/
🇬🇧
/ˈɒksaɪd/
a substance made when oxygen joins with another element
Rust is a common oxide that forms when iron reacts with oxygen in the air.
铁锈是一种常见的氧化物,当铁与空气中的氧气反应时形成。