kink

音标发音

Too much or too little energy throws a kink in the brain’s delicate machinery.
摄入过多或过少的能量会在大脑中形成一个结构微妙的扭结。
In a squatting posture, the bend straightens out, like a kink ringed out of a garden hose, and defecation becomes easier.
而蹲的姿势，弯曲理顺，就像抛开一条环绕扭结花园软管，也使排便变得更加容易。
The pressure causes tiny blood vessels in the retina to kink and twist, which is pointed out by one arrow.The other arrow points to "dents" in retinal veins, a condition known as A-V nicking.
压力引起视网膜内的微血管扭结弯曲，如图中的一个箭头所示，图中的其它箭头所指为视网膜静脉内的“ 凹陷”，称作动静脉局部缩窄病症。

In any case, such a change would put a major kink in getting new drugs approved.
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Right now I have a kink in my plan-since I am in a rural area and unemployed.
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Some sort of kink in the yield curve or something I guess.
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(TWIST) an unwanted twist or bend in a wire, rope, pipe, etc. that is usually straight
(PROBLEM) something that is wrong
(HABIT) a strange habit

A kink is a curve or twist in something which is otherwise or normally straight.
If something kinks or is kinked, it has, or it develops, a curve or twist in it.