promotional activity的用法和樣例：
例句
- Businessmen attract customers through all kinds of promotional methods.
商家們通過(guò)各種促銷(xiāo)手段來(lái)吸引消費者。 - A firm may not use all of these promotional techniques to move a product,but many will rely on two or three of them because one alone cannot usually do the job.
一個(gè)企業(yè)可能不會(huì )用所有這些促銷(xiāo)手段來(lái)推銷(xiāo)產(chǎn)品，但是許多企業(yè)會(huì )運用其中的兩種或三種促銷(xiāo)手段，因為僅靠一種手段往往不能奏效。
