氧气 (yǎng qì): Oxygen (Noun) — Meaning & Stroke Order

We need oxygen to breathe.

Without an adequate supply of oxygen, this experiment simply cannot proceed.

Although plants do not produce oxygen at night, they still play an important role in purifying the air.

In high-altitude areas, the oxygen content in the air is lower, making people prone to discomfort.

Feeling dizzy while climbing might be due to the thin oxygen at high altitudes.