if the hole in the chest wall is 2/3 rds the size of the trachea it should be sealed. 이 문장에서 rds 뜻이 뭐임? - dc official App
그냥 two thirds를 2/3rd 라고 줄여쓴덧
Aㅏ - dc App
Two thirds
Aㅏ.... - dc App
늦었네 ㅎㅎ