But other industry observers say this return-of-toy trend is more rooted in basic economics.但其他行業(yè)觀察人士認(rèn)為，這種玩具回歸的趨勢(shì)更多地是源于基本的經(jīng)濟(jì)學(xué)原理。Television wildlife programmes have helped to fuel the new trend.電視野生動(dòng)物節(jié)目助長(zhǎng)了這一新趨勢(shì)。It is too early to explain the different trends in happiness over time in different countries.要解釋不同國(guó)家不同時(shí)期的幸福趨勢(shì)還為時(shí)尚早。(2006年陜西卷閱讀理解E篇)