Surgical masks are designed to prevent the wearer from spreading germs, but may also catch large respiratory droplets if someone sneezes nearby. 外科手術(shù)口罩被設計用來(lái)防止佩戴者傳播細菌，但如果附近有人打噴嚏或許也會(huì )被噴上飛沫。
Mr Yettaw was wearing a blue surgical mask and clutching a green Harrods bag as he was pushed in a wheelchair through Chicago's O'Hare International Airport after his arrival. 耶太華到達以后，戴著(zhù)一個(gè)藍色的消毒面罩手里緊握這個(gè)綠色的哈羅士包，坐在輪椅上被推出奧海爾國際機場(chǎng)。
