不知所云[bù zhī suǒ yún]
词典unintelligible：费解；不能理解的，莫名其妙的；模模糊糊。
词典incomprehensible：不可思议的；难以理解的，难懂的；莫测高深的；无限的。
词典do not know what oneself (self deprecatory) or others are talking about
词典be unintelligible：不知所云。
词典between the devil and the deep sea：进退维谷；不知所云。
不知所云[bù zhī suǒ yún]
do not know what oneself (self deprecatory) or others are talking about; incomprehensible; be unintelligible; between the devil and the deep sea; be unable to make out what sb. is driving at [talking about]; embarrass with [by]; fail to catch what one mean
例：这篇文章条理不清， 使人看了不知所云。
The article is so poorly-organized that I don't know what to say after reading it.
1. Foot in mouth：Fools rush in where angels fear to tread 智者裹足不前,愚者铤而走险,不可轻举妄动 | Foot in mouth 不知所云 | Foot in the door 初步入门,迈出了第一步
2. dyldm：dft--外国足球 | dyldm--不知所云 | ellench--云舞轻狂
3. 不知所云的翻译
3. joe：99/泪/inn | 100/不知所云/joe | 101/跳/jump