重點講解：
1. be unique to
獨有的；特有的；
eg. Many of the 10000 other species found there are unique to the region.
在那里生存的10000種其他物種中有許多是當地獨有的。
eg. Indeed financial crises are not unique to emerging markets of Asia.
事實上，金融危機并非只在新興的亞洲市場出現。
2. head for
朝著（某一地點）行進；
eg. He headed for the bus stop.
他朝著公共汽車站走去。
eg. Most visitors will head for the theme parks but it's worth poking around the city too.
大部分的游客會直接前往主題公園，但是奧蘭多城區還是很值得一逛的。
3. pick up
發現，找到；
eg. Where did she pick up this companion?
她在哪里找到這個同伴的？
eg. He visits a nearby neighborhood grocery store to pick up some food, but the narrow rows and the bustle of intent shoppers drive him away.
他去鄰近的雜貨鋪想找些吃的，但狹窄的過道和匆忙的顧客把他擠了出來。