HSK2

air

Showing: All meanings (9)

1,188 sentences — page 41 of 60

  1. The human brain needs oxygen.

    Source: CCMatrix
  2. Animals and humans both need to breathe oxygen.

    Source: CCMatrix
  3. What would happen if the Earth lost oxygen for 5 seconds?

    Source: CCMatrix
  4. However, trees are definitely not the only source of oxygen.

    Source: CCMatrix
  5. Does the Amazon Rainforest truly produce 20% of the Earth’s oxygen?

    Source: CCMatrix
  6. At this point, there’s less oxygen, but you can still breathe.

    Source: CCMatrix