hydrogen

中文意思

• n. 氢
• n. 氢气

英文释义

• n. a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe

词形变化

复数

hydrogens

例句

1. n. 氢

   Water is a chemical compound that consists of hydrogen and oxygen.

   水是一种由氢和氧组成的化学化合物。

2. n. 氢气

   Because hydrogen is lighter than air, it was once used to fill airships.

   因为氢气比空气轻，所以它曾经被用来填充飞艇。