可想而知

tā duì zì jǐ de fù mǔ dōu rú cǐ cū lǔ duì qí tā rén jiù kě xiǎng ér zhī le

他对自己的父母都如此粗鲁，对其他人就可想而知了。

He is rude even to his parents, not to mention other people.

tā lián zuì jiǎn dān de wèn tí dōu bù huì shèng xia de jiù kě xiǎng ér zhī le

他连最简单的问题都不会，剩下的就可想而知了。

As he was unable to answer the simplest question, you may well imagine how he fared with the rest.

jié guǒ zěn yàng kě xiǎng ér zhī

结果怎样可想而知。

You can imagine what the outcome was.

dà jiā dōu bù yuàn jiē jìn tā kě xiǎng ér zhī tā de wéi rén

大家都不愿接近他，可想而知他的为人。

Everybody stays away from him. You can imagine what he is like.

rú guǒ bù néng jìn xíng yǒu xiào de chéng běn kòng zhì qián jǐng kě xiǎng ér zhī

如果不能进行有效的成本控制，前景可想而知。

If cannot carry on the effective cost control, the prospect can be imagined.