It means normal and polite social ____(behave)

It means normal and polite social behavior是什么意思 It means normal and polite social ____(behave) fast and normal quality.cheap.worth it! It means change,and leaving behind unforgettable faces and places. and means“ 请问it means something is effective and makes people excited . it has helped hundreds of people return to work and live a normal life. it is normal that you feel nervous befroe a test,and everyone does的 everyone does It just normal,be easy. What does it means? web what it means? it means electronic friend she never means it Normal normal Reagents and Culture Means ways-and-means, 请问这句英语表达的是什么意思?And how long it will take with normal shipping (without DHL)?