any vital part of the body which has a particular function
器官
她捐出了自己的一个肾脏，拯救了一个需要健康器官的人的生命。
the external sex organs of the body
生殖器, 性器官
她的生殖器感到不适和瘙痒，促使她寻求医疗帮助。
an arm or a leg of a person or any four-legged animal, or a wing of any bird
肢体, 手臂或腿
鸟类依靠它们强壮的肢体肌肉起飞并在天空中翱翔。
the network of neurons and fibers that interpret stimuli and transmit impulses from the body to the brain
神经系统, 神经网络
a protective system in the body that defends it against diseases and harmful substances
免疫系统
免疫接种通过引入弱化或灭活的病原体形式以刺激抗体产生，在增强免疫系统方面起着至关重要的作用。
the group of organs inside the body that absorb the food and pass the waste
消化系统, 消化器官
在消化系统内，酶和酸协作将食物分解成更小的分子以便吸收。
a biological system that facilitates the exchange of oxygen and carbon dioxide, primarily through the lungs
呼吸系统
呼吸系统帮助我们呼吸。
the biological system in organisms that enables the production of offspring through sexual reproduction
生殖系统, 繁殖系统
男性和女性都有一个生殖系统。
the complex network of bones, muscles, and connective tissues supporting the body's structure and enabling movement
肌肉骨骼系统, 运动系统
肌肉骨骼系统对日常活动至关重要。
an organ in the body that produces certain chemical substances to be used in the body or to be discharged into the surroundings
腺体, 分泌器官
唾液腺产生唾液，有助于食物的消化。
a complex network of the heart, blood, and blood vessels that transports oxygen, nutrients, and hormones to cells throughout the body and removes waste products
心血管系统, 循环系统
血管位于心血管系统中。
the upper part of the human body, excluding the arms and the head
躯干, 上身
她用双臂环抱住他的躯干，感受着他身体的温暖。
the upper or posterior surface of a body
背部, 背面
她抱怨长时间工作后dorsum酸痛。
the lower part of the body below the chest that contains the digestive and reproductive organs
腹部, 肚子
在她重要的演讲之前，她感到腹部有一种颤动的感觉，这是紧张的明显迹象。
the natural constitution or physical structure of a person
体格, 体型
他苗条的体格使他能够轻松地进入狭小的空间。
the shape of a person's body, particularly a woman, when it is considered appealing
身材, 体型
尽管社会压力要求符合某种身材，但重要的是要拥抱和爱你的身体，无论其形状或大小。
the body's way of cooling down with a salty liquid
汗, 汗水
勤劳的工人用一块破旧的手帕擦去了额头上的汗水。
the unit used to measure the amount of energy that a food produces
卡路里
许多人跟踪他们的每日卡路里摄入量以管理体重和保持健康饮食。
the amount of matter in an individual, often used to describe the overall weight or size of the body
质量, 体积
多吃会导致质量增加。
the flowing blood in a circulatory system, moving through vessels to transport oxygen, nutrients, and waste products throughout the body
血流, 血液循环
研究人员发现，微塑料可以穿过细胞膜并最终进入血液。
