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难怪 （当然／納得いく）
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A reason makes an absence understandable
- A friend did not attend. You learn that he was ill: no wonder难怪he他did not come没来，it turns out / originally (context)原来illness病(completed / change)了。 — No wonder he did not come; it turns out he was ill.
- no wonder难怪 expresses the speaker’s understanding of the absence. It does not itself rule out every other reason for staying away.
You learn that an absent friend is ill. What does 难怪他没来，原来病了。 communicate?
難易度 1/5 · 100 コイン + 今日初回完了時に小ボーナス付与
The new information explains the absence to the speaker. 难怪 expresses a reaction of understanding. It does not independently prove that the proposed cause is the only possible cause.
React to an observation with no wonder难怪
- Use no wonder难怪 + observation. The reason may appear nearby: it turns out / originally (context)原来he他illness病(completed / change)了，no wonder难怪not / haven't没come来。 reverses the order of the two ideas.
- The original not不come来 example can describe not coming in its context. For this completed absence, not / haven't没come来 makes the event’s non-occurrence explicit.
no wonder难怪he他not不come来。
Use the lesson target 难怪 in this demonstrated example: No wonder he didn't come: ____ 他不来，原来病了。
難易度 1/5 · 100 コイン + 今日初回完了時に小ボーナス付与
难怪 + 観察結果 = 当然：难怪他不来,原来病了.
Name the observation and its explanation
- it turns out / originally (context)原来he他to check考(completed / change)了第一名，no wonder难怪so much这么happy高兴。 — He came first; no wonder he is so happy. Coming first explains the happiness to the speaker.
- This is a reaction of understanding, not an instruction to be happy or proof that winning is his only source of happiness.
In the stated absence example, 难怪 expresses…
難易度 1/5 · 100 コイン + 今日初回完了時に小ボーナス付与
It makes the observation unsurprising to the speaker. The reason can be known already or newly supplied.
Match each part of 原来他考了第一名，难怪这么高兴 to its role.
難易度 2/5 · 140 コイン + 今日初回完了時に小ボーナス付与
The first-place result is the reason offered for the observed happiness.
A reaction does not establish the evidence
- Someone guesses the absent friend is ill and says no wonder难怪he他did not come没来. The phrase does not turn that guess into a confirmed medical fact.
- Check whether the reason was known or only proposed. A confident reaction and reliable evidence are different things.
难怪 は often 原来 （どうやら）と共に現れる。
難易度 1/5 · 100 コイン + 今日初回完了時に小ボーナス付与
はい — 原来病了，难怪不来.
难怪他没来 proves that illness was the only possible reason for the absence.
難易度 1/5 · 100 コイン + 今日初回完了時に小ボーナス付与
难怪 expresses understanding, not evidence excluding all other reasons.
A speaker guesses a friend is ill. Saying 难怪他没来 confirms the illness as a fact.
難易度 1/5 · 100 コイン + 今日初回完了時に小ボーナス付与
The reaction does not verify the proposed reason; a guess still needs evidence.
Choose a real question for missing information
- If you still do not know why he missed the meeting, he他why?为什么not / haven't没come来？ asks for a reason.
- no wonder难怪he他did not come没来。 presents the absence as understandable given a reason. It does not simply ask the same question.
You still do not know why someone missed the meeting. Which directly asks for the reason?
難易度 1/5 · 100 コイン + 今日初回完了時に小ボーナス付与
为什么 asks for missing information. 难怪 expresses understanding rather than requesting that reason.
Separate the reaction from proof
- Locate the observation, the proposed or known reason, and the speaker’s reaction of understanding. The reason can precede or follow it.
- Do not infer an order, exclusive causation or verified evidence from no wonder难怪 alone. Ask a reason question when the information is missing.
Read the full reference: HSK 5 grammar.
Recall the situation: A reason makes an absence understandable. Decide what the speaker wanted to communicate. Close the examples. Say a Mandarin response, then write it in Chinese. Explain briefly in English what the lesson’s pattern adds. Compare with the model, then change one detail and try again.
This is supported productive practice. Compare meaning and structure; your answer need not copy the model. A partner or teacher must hear the spoken response to comment on pronunciation.