1、roll up
卷起(袖子或褲腿)
The jacket was too big for him so he rolled up the cuffs.
這件夾克他穿著太大了,就把袖口卷了起來。
Walking in the surf, she had to roll her pants up to her knees.
她走在海浪里,不得不把褲腿卷到膝蓋處。
到達;(尤指)涌向,涌到
Roll up, roll up, come and join The Greatest Show on Earth.
快來呀,快來呀,來一起看“地球上最精彩的演出”。
The first reporters rolled up to the laboratory within minutes.
第一批記者在幾分鐘之內就涌到了實驗室。
2、challenge
挑戰;難題
I like a big challenge and they don't come much bigger than this.
我喜歡大的挑戰,而所有挑戰中再沒有比這更大的了。
The new government's first challenge is the economy.
新政府面臨的第一個難題是經濟問題。
(成功地)應對挑戰,迎接挑戰
The new Germany must rise to the challenge of its enhanced responsibilities.
一個嶄新的德國必須迎接挑戰,承擔更多的責任。
They rose to the challenge of entertaining 80 schoolchildren for an afternoon.
他們一個下午成功接待了80名學童。
懷疑,質疑(真實性、價值、權威等)
Democratic leaders have challenged the president to sign the bill.
民主黨領袖對總統簽署這項法案提出了質疑。
The move was immediately challenged by two of the republics.
此項動議立即遭到其中兩個共和國的反對。