重點講解：
1. opt to do sth. 選擇；作出抉擇；
例句：Our students can also opt to stay in residence.
我們的學(xué)生也可以選擇住校)+dhD^W&#h*r]0vrkW。
2. thanks to 幸虧；歸因于；
例句：Thanks to recent research, effective treatments are available.
多虧近來的研究才有了有效的療法[u_#JSLP2+Nif#7F。
3. as well as 除…之外；也；還；
例句：Love lives in cottage as well as in courts.
愛情不分貧賤與高貴^|M)cwSOO0。
4. be based on 以…為基礎(chǔ)；
例句：The novel is based on his travels in India.
這部長篇小說是根據(jù)他的印度之行寫成的vD502bAzwA.j。
5. year on year 年同比，與前一年同期比較；
例句：Even where prices are still falling year on year, markets are healing.
即使有些地方房價同比仍呈下降趨勢，市場也正處恢復(fù)期Z(J_unUoR%^mcz。