A person with strange ideas might be described as out in left field.

VOA: special.2009.04.12

Take a stick, bang it into the ground, hang on that stick a captured helmet, - by the way please get up, thank you - a captured helmet, or a captured corselet, something that represents the military equipment that the losers had that were left on the field.

拿根棍子,插进地里,挂上一个缴获的头盔,-哦,快起来吧,谢谢你-,缴获的头盔,或者是缴获的胸甲,一些本归战败方所有,却被他们丢弃在战场上的军用装备

耶鲁公开课 - 古希腊历史简介课程节选

There is a crossover and this is important when we think about the studies that will follow but the crossover is that everything you see in the left visual field goes to the right side of your brain; everything in the right visual field goes to the left side of the brain, and similarly, there's a crossover in action.

大脑中存在着交叉,这对于我们考虑下面的一些相关研究,是非常重要的,交叉是指呈现于你左视野中的刺激,会投射到你的右脑,呈现于你右视野中的刺激,会投射到你的左脑,同样,行为上也存在着交叉的关系

耶鲁公开课 - 心理学导论课程节选