adj.呼吸的;
例句:
Respiratory tract fluid is the major product of the normal lung.
呼吸道液体是正常肺的主要产物.
A cold is an infection of the upper respiratory tract.
感冒是上呼吸道的感染。
Until the age of seven, respiratory movement is abdominal.
在七岁以前呼吸运动是腹式的.