雅思寫(xiě)作高頻詞匯：首選

　　preferred[/優(yōu)先的]

　　- eg: In order to ensure that the fund performs as expected, it should be put in those preferred projects.;

　　tax incentive[稅收獎(jiǎng)勵(lì)]

　　- eg: Federal tax incentives will be given as a reward if you purchase a new hybrid vehicles.