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N3

わけだ

For that reason, No wonder, As you'd expect, Naturally, Thus, This is why

事故じこで電車でんしゃが遅おくれたの?だから珍めずらしく遅おくれて来きたというわけだ。

The train was late due to an accident? So that's why you came in unusually late.

Explanation

「わけだ」 has 2 uses

1No wonder

Once you know the reason, the result makes sense, often with 「道理で」 or 「だから」: 「熱があるのか。苦しいわけだ」 (you have a fever? no wonder you feel bad).

雪ゆきが降ふっていた。寒さむい訳わけだ。

It snowed, so as you'd expect, it's cold.

指ゆびの骨ほねが折おれていたのですね。だから指ゆびを動うごかしたら痛いたかったという訳わけですね。

You are saying that my finger was broken? So that's why my finger hurt when I moved it.

2So that means

Restates what came before as a conclusion or a sum: 「5%引きでポイントもつくなら、1割引きなわけだ」 (so it's really 10% off).

俺おれと一緒いっしょにいたくないわけだね?分わかったよ。

So you are saying that you don't want to be with me, right? I understand.

先輩せんぱいたちは後あとから来くるというわけですか?

So the senpai are coming later?

Mixed up with

「わけだ」 no wonder; 「わけではない」 it's not that; 「わけがない」 there's no way; 「わけにはいかない」 I can't, for moral or social reasons.

「はずだ」 is a guess from evidence ('it should be so'), not yet confirmed. 「わけだ」 confirms a reason for something already known.

Examples

1No wonder

  1. 彼女かのじょは医者いしゃになりたいから、医学いがくの勉強べんきょうをする訳わけだ。

    She wants to be a doctor — that's why she's studying medicine.

  2. 雪ゆきが降ふっていた。寒さむい訳わけだ。

    It snowed, so as you'd expect, it's cold.

2So that means

  1. 俺おれと一緒いっしょにいたくないわけだね?分わかったよ。

    So you are saying that you don't want to be with me, right? I understand.

  2. 先輩せんぱいたちは後あとから来くるというわけですか?

    So the senpai are coming later?

Tested 6 times in past papers

N1 · Jul 2024, Q44N2 · Jul 2019, Q50N2 · Dec 2018, Q51N2 · Jul 2018, Q54N2 · Jul 2017, Q51N2 · Jul 2012, Q53