英语语法分析

Why do companies spend so much on price promotions?

为什么公司会在价格促销上花这么多钱呢？

This may end up costing you opportunities for promotions or pay raises.

这可能会让你失去升职或加薪的机会。

It has no ads or promotions inside. Instead it is jam-packed with serious ideas.

（这本杂志）没有任何广告和促销信息，而是充满了严肃的思想。