限于

be confined to; be limited to

1. 这次会议上的讨论只限于议程上的项目。
   Discussion at the meeting was restricted to the agenda.
2. 当你不再仅仅限于文字和静止图片时，网上生活会丰富多彩得多。
   Life on-line can be a much richer experience when you aren't restricted to just written words and still pictures.
3. 短暂的仅限于一个插曲持续的时间；短暂的
   Limited to the duration of an episode; temporary.
4. 化学合成用简单无机化合物的化学氧化所产生的能量将二氧化碳和水合成碳水化合物。这种化学合成形式只限于某些细菌和真菌
   Synthesis of carbohydrate from carbon dioxide and water using energy obtained from the chemical oxidation of simple inorganic compounds. This form of synthesis is limited to certain bacteria and fungi.

于的英语翻译：