purchasing behavior的用法和樣例：
例句
- Look no further than the change in consumers' online behavior in the last few years, said Gulley.
無需再左顧右盼，看看近幾年來消費者在線購買行為的變化就足以說明問題。 - On this premise, the paper launched the study about repurchase behavior to explain this phenomenon.
正是在這樣的前提下，本文展開了對重複購買行為的研究，以期能夠對這種現象進行解釋。
