什么情况下一般要用缩写形式的翻译：Under what conditions typically used abbreviations 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Under what circumstances to use the abbreviated form of the general

Under what conditions typically used abbreviations

In any situation must use the abbreviation form generally

Under what circumstances should be abbreviated form in general

Under what conditions typically used abbreviations