1. lean against the door (문에 기대다) 2. by a majority of 50 against 20 (20표대 50표의 다수로) 3. with one's back against the railing (난간에 등을 대고) 4. Running against a strong wind is very hard. (강풍을 안고 뛰는 것은 매우 힘든다) 5. Passengers are warned against pickpockets. (《게시》 승객 여러분 소매치기에 조심하십시오)
