1.because of... 因為……,由于……
I failed in my career as a writer of fiction entirely because of deficiencies in the education system.
我的小說作家生涯失敗了,原因完全是因為教育體制的缺陷 。
2.take responsibility for... 對……負責
Don't worry. If anything goes wrong, I'll take responsibility for it.
沒關系,出了問題我兜著 。
3.ahead of... 在……之前
I think he made a tactical blunder by announcing it so far ahead of time.
我認為他在時機遠未成熟時就把這事說了出去是一種失策 。