“重大的”的英语可以翻译为：grand，grave，great，gross，fatal ...

我再也无可奉告了，这本是重大的秘密。I can't say any more, it's meant to be a big secret.赢得如此重大的比赛确实使我信心倍增。It did give me a boost to win such a big event.他重新召集国会当然是件非常重大的事了。It was certainly serious enough for him to reconvene Par...