oxygen

n. [U] chemical element, a gas without color, taste or smell, present in the air and necessary for all forms of life on earth
氧；氧氣
There was a lack of oxygen at the top of the mountain.
山頂上缺氧。
She died from lack of oxygen.
她因缺氧而死。

《新視野大學英語詞匯講解第263期:oxygen》永久閱讀地址: http://www.jiazhineng.cn/yingyu/4670/