重點講解：
1. at play 發(fā)揮作用；
But there are also psychological factors at play.
但也有心理因素在起作用5,YRN3wgL6Jch@zK。
2. damp down 抑制，平息（強烈的感情、爭吵或危機)；
The entire spending boost could go on wage demands unless expectations are damped down.
除非降低預(yù)期，否則整個支出增長計劃可能會導致加薪要求(Lx!O1Mw(1nTk+XiSv&U。
3. ups and downs 興衰；浮沉；起落；悲歡；
We are bound to see some ups and downs along the road to recovery.
在經(jīng)濟復(fù)蘇的過程中，我們一定會經(jīng)歷一些曲折起伏3m&My5u*PqWgXD^Y7h。
4. correlate to 相互關(guān)聯(lián)；
Assessing whether different biological populations have gene expression profiles that correlate to their biogeographical distribution.
探索不同生物種群的基因表達譜是否與生物地理分布相關(guān)聯(lián)7Emry1J7vw!cy4.1。