The gravest threat to our environment is climate change.

对我们环境的最严重的威胁是气候变化。

The gravest concern among the citizens is the rising crime rate.

市民们最严重的担忧是不断上升的犯罪率。

The gravest mistake you can make is to underestimate your opponent.

你能犯的最严重的错误就是低估你的对手。

The president addressed the nation about the gravest economic crisis in decades.

总统向全国发表讲话，谈到了几十年来最严重的经济危机。

The doctor warned that ignoring the symptoms could lead to the gravest consequences.

医生警告说忽视这些症状可能会导致最严重的后果。

The author sums up his subject’s gravest weakness as “nihilistic overconfidence”.

弗里茨基布先生把克伦威尔的最严重的弱点总结为:虚无主义者的过分自信。

Perhaps the gravest error in the divines' handling of the fourth commandment is that they seem to suggest that it doesn't make much difference whether the Sabbath is observed on Saturday or Sunday.

也许威敏思特圣徒在处理第四诫时最严重的错误，是他们似乎在暗示，无论安息日是在周六或周日，都没有差别。

That was the gravest occasion Davy had ever taken part in.

这是戴维参加的最庄重的场合.

He talks of the most impossible things in the gravest possible manner.

他会带着最严肃的表情告诉我一些最离奇的事情。

He also said this was the gravest and greatest single loss of life for the U.N. in its history.

他还说，这是联合国历史上人员损失最大的一次事件。