Warning: file_put_contents(/www/wwwroot/zidian/oumou.cn/cache/3486906d21143f149299f08803d4a739.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/oumou.cn/index.php on line 58
oxygen mask英英字典_oxygen mask剑桥英语解释_oxygen mask柯林斯英文解释_欧米惠必应词典
欧米惠必应词典

oxygen mask

O 开头单词

柯林斯词典

    oxygen mask (oxygen masks)

  • 1. N-COUNT An oxygen mask is a device that is connected to a cylinder of oxygen by means of a tube. It is placed over the nose and mouth of someone who is having difficulty in breathing in order to help them breathe more easily. 氧气面罩

    • 返回 oxygen mask

剑桥词典