重點(diǎn)講解：
1. aim to do sth. 致力于；旨在；以…為目標(biāo)；
They are aiming to reduce unemployment by 50%.
他們正力求使失業(yè)人數(shù)下降50%,|c&ZoIyWA!C|VUY[v。
2. be due to 由于；因?yàn)椋?/span>
I was relieved to find out that my problems were due to a genuine disorder.
得知我的問題確實(shí)是由于病癥引起的，我松了口氣GMV,7j+c-^6tM。
3. in contrast 相比之下；與…相反；
In contrast, the lives of girls in well-to-do families were often very sheltered.
相反，生活在富裕家庭的女孩子通常都備受呵護(hù)c^3XtRy74DwV-u。
4. be involved in 卷入的；參與的；與…有密切關(guān)聯(lián)的；
They have been involved in a campaign of deceit.
他們參與了一系列的欺騙活動(dòng)hJs=pag5Z-33-。