1、come back
回憶起;回想起來
He was also an MP — I'll think of his name in a moment when it comes back to me.
他當時也是一位國會議員,他的名字我得想一下才能記起來。
When I thought about it, it all came back.
當我回想起來,往事全都涌上了心頭。
重新流行;再度時興
I'm glad hats are coming back.
我很高興又開始流行戴帽子了。
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。
(對真實性、價值、權威等提出的)懷疑,質疑
The demonstrators have now made a direct challenge to the authority of the government.
示威者現在直接對政府的權威發出了質疑。