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- The heart is a vital organ. 心脏是维持生命必须的器官。
- The heart is one of the body's vital organs. 心脏是人体的重要器官之一。
- The heart is one of the body rs vital organs. 心脏是人体的重要器官之一。
- The liver is a vital organ of the human body. 肝脏是人体的重要器官。
- The heart is a cone-shaped organ. 心脏是一个圆锥形的器官。
- At this piont, point the heart is a tubein . 这时心脏还只是一个管状器官。
- The heart is a highly contractile organ. 心脏是具有高度收缩性的器官。
- The heart is a muscular organ that contracts rhythmically. 心脏是个肌肉性器官，具有节律性收缩能力。
- The heart performs a vital bodily function. 心脏起著维持生命的重要作用。
- At this point the heart is a tube. 这时候心脏还只是一个管状物。
- The heart is analogous to a pump. 心脏和水泵有相似之处。
- The heart performs a vital bodily function . 心脏起着维持生命的重要作用.
- I think the heart transplant is a wonderful thing. 我认为心脏移植是件神奇的事。
- This is a tale that wrings the heart. 这是个令人心痛的故事。
- The heart is a complex organ that starts beating a few weeks after conception. 心脏是个复杂的器官，自从概念诞生后开始了几个月的跳动。
- The heart is shaped like a cone. 心脏呈圆锥形。
- Grooming is a vital part of caring for your dog. 刷洗是养狗的重要一环。
- The heart is a complex organ that starts beating of a few weeks after conception. 心脏是个复杂的器官，它是在怀孕后的几周内开始跳动的。
- However, there is a vital shift in the final step. 然而，在最后的步骤中存在着重要的差别。
- The heart is a motive organ, and can the whole life keep having the rhythm of shrink and diastole. 心是动力器官，能终生保持有节律地收缩和舒张。
