英和和英

iPhone 3G

Mega Mac

a compact disc player

an advantageous purchase

headphone

streaming audio

speculative buying

K-Pop

Robo-G

a portable stereo

panic buying

buy at a (good) bargain

LMAO

an M. P

a fast speaker

a purchasing association

a purchase guild

a purchase on spec（＝ speculation）―a speculative purchase

to propose marriage

purchasing-power―buying-power―（of people or money）

a bulk purchase

make a purchase

purchase

to buy cheap―buy at a bargain―make a good bargain

to buy anything cheap―buy anything at a low price―buy anything at a bargain―make a good bargain

stop a speaker

hire-purchase―the hire system

I bought it at a bargain

a megaphone

a megaphone