名词
中文翻译：笑气
同义词：
['laughing gas', 'sulfur dioxide']
例句：
-
1.The children were giggling with laughter at the joke.
孩子们因为笑话而咯咯地笑。
-
2. The doctor gave him a shot of sulfur dioxide to help him breathe easier.
医生给他打了一支二氧化硫针剂，帮助他呼吸更轻松。
-
3. The smell of sulfur dioxide is strong and unpleasant.
二氧化硫的气味很浓且令人不快。