from person to person by the exchan

from person to person by the exchange of respiratory and throat secretions (saliva or spit) during close or lengthy contact, especially if living in the same household.

Results (Chinese Traditional) 1:

從人到人的呼吸結算所和咽喉分泌物 （唾液或吐痰） 期間密切或長時間接觸，尤其是如果生活在同一家庭。

Results (Chinese Traditional) 2:

從人到人的呼吸系統和咽部分泌物（唾液或唾液）期間關閉或長時間接觸交流，尤其是生活在同一個家庭。

Results (Chinese Traditional) 3:

從人到人的呼吸和喉嚨分泌物的交換（唾液或唾液）在密切或長期的接觸，特別是如果生活在同一個家庭。