重点讲解：
1. compared with 与…相比；和…比起来；
例句：Our price is attractive as compared with that in the international market.
与国际市场相比，我们的价格是有吸引力的Ne#U+o7dK3ceCAZ。
2. contribute to （为…）做贡献；
例句：Many specialistic techniques contribute to archaeology.
许多专业技术对考古学作出贡献KX#X*jU04Eqn。
3. cut back on 减少；削减；缩减；
例句：We really need to cut back on our spending.
我们真的需要削减我们的开支aCeC85sph[@Ephs6]。
4. year on year 年同比，与前一年同期比较；
例句：Spending has increased year on year.
与去年同期比较，开销增加了sW#QzJVuL2)maff.~SIa。
5. refer to 指的是；
例句：The terms supply and demand refer to the behaviour of people as they interact with one another in markets.
供给和需求两个术语指人们在市场上相互交易时的行为L1xl!L1aC6N7Z。