nasal duct的用法和样例：
例句
- Bad News Breathing Uneasy Those nasal strips athletes wear to boost their performance may not be up to snuff.
坏消息呼吸困难那些运动员为了提高成绩而使用的鼻管也许并不能达到预想的效果。 - The theory is that the strips, which cross the nose and hold open nasal passages, allow more oxygen to get to hard-working muscles.
使用鼻管的理论依据是，鼻管环绕着鼻子，将鼻道打开，在肌肉紧绷时允许更多的氧气进入。
