The atmosphere mostly consists of nitrogen and oxygen.
大氣主要由氮氣和氧氣組成。
The high percentage of oxygen allows insects to grow to frightful sizes.
高含量的氧氣使昆蟲能夠長到可怕的大小。
The high percentage of oxygen makes humans feel energized and alive.
高含量的氧氣使人類感到精力充沛、充滿活力。
Hydrogen, carbon, nitrogen, phosphorus, oxygen, sulfur and selenium are nonmetals.
氫、碳、氮、磷、氧、硫和硒是非金屬。
Tom's brain was deprived of oxygen for too long.
湯姆的大腦長時間缺氧。
Water comprises of oxygen and hydrogen.
水由氧和氫組成。
A molecule of water is made up of one oxygen and two hydrogen atoms.
水分子由一個氧原子和兩個氫原子組成。
Hydrogen and oxygen combine to form water.
氫和氧結合形成水。
Water is made up of hydrogen and oxygen.
水由氫和氧組成。
Water consists of hydrogen and oxygen.
水由氫氣和氧氣組成。
Trees give off oxygen and absorb carbon dioxide.
樹木釋放氧氣並吸收二氧化碳。
The air we breathe consists of oxygen and nitrogen.
我們呼吸的空氣由氧氣和氮氣組成。
Without oxygen, all animals would have disappeared long ago.
如果沒有氧氣,所有動物早就消失了。
Water consists of hydrogen and oxygen.
水由氫氣和氧氣組成。
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