inner duct的用法和樣例：
例句
- For example, the inner membrane of the motochaondrion is impermeable to the movement of protons.
例如，線粒體內膜對於質子轉移是不透性的。 - Children with certain heart defects are at risk for developing an infection of the inner surfaces of the heart known as bacterial endocarditis.
先天性心臟病患兒的心臟內表面有發生被稱為心內膜炎的感染危險。
