1.
This was a grievous error.
这是个严重的错误。
2.
I made a grave mistake.
我犯了一个严重的错误。
3.
That' s a bad mistake.
那是一个严重的错误。
4.
a grave mistake, error, etc
严重的错误、 过失等.
5.
We have made a serious mistake and have no intention of sweeping it under the mat.
我们犯了严重的错误，但并不想掩盖错误。
6.
I made a mistake, and a very bad mistake at that.
我犯了一个错误，而且是一个严重的错误。
7.
His costly mistake resulted in severe loss.
他的严重的错误导致了重大的损失。
8.
To be blind to this will lead to the gravest error.
对这视而不见的话会导致严重的错误.
9.
To my way of thinking, they are making a serious mistake.
照我的想法，他们正犯一个严重的错误。
10.
A serious mistake has turned up in the planning.
在规划方面发生了一个严重的错误。
11.
Gross errors were made by the Transport Commission.
遣送委员会犯下了严重的错误。
12.
a bad mistake must be charged off to experience
严重的错误必须当作经验记下来。
13.
I committed a serious error in my work.
我在工作中犯了一个严重的错误。
14.
She has made a grievous mistake.
她犯了一个极严重的错误。
15.
I sensed that I had made a serious mistake.
我意识到自己犯了个严重的错误。
16.
He make a gross mistake but refuse to admit it
他犯了严重的错误却不肯承认
17.
a bad mistake, accident, fracture, headache
严重的错误、 事故、 骨折、 头痛.
18.
His error is of a serious nature.
他的错误情节严重。