failed

过去式：

动词过去式: fail-safed

更多词形：

动词过去式: fail-safed | 动词过去分词: fail-safed | 动词现在分词: fail-safing | 动词第三人称单数: fail-safes |

单词例句：

Try as he may (=Though he may try), he will definitely fail.

虽然他会尝试去做，但无疑他必失败。

He gave me a bum steer on the last exam that I failed.

上次考试他给我指点错了，所以我没及格。

He failed his maths examination because of his careless work.

他由于粗心大意，数学考试没及格。

Study hard, or you'll fail (in) the exam.

要用功，否则你会考不及格。

It was what she had said that I failed to recall.

正是她所说的内容我记不起来了。

The machine, however, failed on its trial run.

但这部机器的试车失败了解。

A poor contact causes power to fail occasionally.

接触不良有时会造成断电。

The newspaper owner failed to pull the paper round.

报馆老板没能挽救该报的失败。

However, this failed to produce the desired result.

但这并没有产生预期的效果。