良い新聞記者は、どんなニュース源からも、つまり、出所不明型のニュース源からも、学びとれるものはなんでも利用する。

tbd

A good newspaper reporter takes advantage of what he learns from any source, even the "little bird told him so" type of source.

彼がそれをした時間は不明である。

tbd

The time when he did it was not known.

事故の原因は我々には不明である。

tbd

The cause of the accident is not known to us.

荒唐無稽と皆に言われた彼のビジネスプランだけど、今となっては我々の不明を恥じるしかないのかね。

tbd

Every one of us who ridiculed his business plan as a bunch of hokum should be embarrassed we did.

現在その病気の原因は不明である。

tbd

At present, the cause of the disease is unknown.

火事の原因は不明である。

tbd

The cause of the fire isn't known.

The cause of the fire is unknown.

The cause of the fire is not known.

それ以来彼らの消息は不明だ。

tbd

They have never been heard of since.

They've never been heard of since.

しかし、ゴルバチョフ大統領が健康に何らかの問題を抱えているという兆候はありませんでしたし、その消息も目下のところ不明です。

tbd

But there had been no indications Gorbachev was having any sort of health problems, and it is not exactly clear what's happened to him now.

事故の原因は不明だ。

tbd

The cause of the accident is unknown.