1. on average 平均下來
single dads on average are at bit elder than single moms.
單親爸爸的平均年齡比單親媽媽稍大一些qwZ+s%a=amu5Y9I[。

2. stare at 盯著
The man stared at Oliver. 'What the devil's this?' he said, stepping back.
這人盯著奧利弗，一邊往后退一邊說："見鬼！怎么搞的？"

3. love-hate relationship 愛恨交織的關系
The people of the two countries have a love-hate relationship and joke about their rivalry.
兩國人民之間有著又愛又恨的關系，他們經(jīng)常互相開玩笑KBkSk63_UxJrEA-5。

4. set up 設立
The Swedish authorities have set up a commission to find out why.
為查找原因，瑞典政府成立了專門委員會=5FMtD~#a0Y+w[。