好的形象性的导入可以达到言简意赅，减少不必要的解释之功效。

C. Good image of import can be concise and to reduce unnecessary to explain the effect.

youdao

这样做不仅仅是更专业，也可以减少不必要的解释，因为那些很少使用IM的用户会不明白“什么是IMO”。

Not only is it more professional, it helps avoid the distraction of a "What is IMO?" conversation with a less-than-net-savvy IM user.

youdao

阿克解释到，“一些特别的环境因素会使你的大脑陷入不必要的恐慌，而其它的一些则会有助于你的创意思维或让你平静。”

"Certain environmental cues can trigger your reflexive brain into needless panic, while others can prime you for creative thinking or calm reflection," Achor notes.

youdao