喜樂美語
  1. 1nB2/ˈɑːksɪdʒən/ · /ˈɒksɪdʒən/氧氣

    A gas in the air that has no colour or smell, and that people, animals, and plants need to stay alive.

    示範例句 · Example

    Green plants make oxygen for us to breathe.

    逐字綠色植物製造氧氣給我們呼吸。

    「oxygen」是空氣裡那種看不到、聞不到的氣體，人、動物和植物都要靠它才能活下去。可以想成「呼吸時身體真正需要的那一口」——空氣（air）裡還混了別的氣體，oxygen 特別指其中維持生命的那一種。它的化學符號是 O，是一種元素。

    常見搭配

    • oxygen mask

      氧氣罩

      a cover worn over the face so you can breathe oxygen

      The flight attendant showed us how to use the oxygen mask.

    • oxygen tank

      氧氣瓶／氧氣筒

      a container that holds oxygen for breathing

      Divers carry an oxygen tank on their back.

    • run out of oxygen

      氧氣用完

      to use up all the oxygen that is available

      If too many people crowd into the small cave, they could run out of oxygen.

    • oxygen level

      含氧量

      how much oxygen is present in the air, water, or blood

      Doctors watched the sick baby's oxygen level closely.

    • produce oxygen

      製造氧氣

      to make oxygen

      Trees produce oxygen and help clean our air.

    意思相近

    O2

    用法接近

    airnitrogenhydrogencarbon dioxide

core核心畫面

Picture the invisible gas all around us in the air — no colour, no smell — that people, animals, and plants must take in to stay alive.

可以想成瀰漫在空氣裡、看不見也聞不到的一種氣體——沒有顏色、沒有味道，卻是人、動物和植物都得靠它才能活下去的東西。

意思相近

O2

用法接近

airnitrogenhydrogencarbon dioxide

原始詞典資料5 筆記錄

以下是外部詞典記錄的用法，摘錄並精簡格式，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。

oxygennoun/ˈɒksɪd͡ʒən/

  • 1

    The chemical element (symbol O) with an atomic number of 8 and relative atomic mass of 15.9994. It is a colorless and odorless gas. Sometimes called elemental oxygen to distinguish it from molecular oxygen.

    • Holonyms: dioxygen, O₂, oxygen (loose sense)
    • By molar fraction, calcium oxide contains equal parts calcium and oxygen.
  • 2

    Molecular oxygen (O₂), a colorless, odorless gas at room temperature.

    • Meronym: oxygen (strict sense)
    • About 21% of the air you breathe is oxygen.
  • 3

    medicinesciencesA mixture of oxygen and other gases, administered to a patient to help them breathe.

  • 4

    An atom of this element.

    • Look first at any structure to see if there is a carbon with two oxygens attached. Hemiacetals, hemiketals, acetals, and ketals are all alike in that regard.
  • 5

    A condition or environment in which something can thrive.

    • Silence is the oxygen of shame.
    • They hoped to starve the terrorists of the oxygen of publicity.

摘錄自 英文維基詞典 English Wiktionary，已精簡格式；依 CC BY-SA 4.0 授權使用，改動後的內容同樣以此授權提供。