一 + MW + 一 + MW (one by one)
IntroducedSpread an action across individual units
- Students enter through a narrow door separately.
- students学生one一个one一个come in进来。 — The students enter one by one.
Students enter through a narrow door separately. What does 学生一个一个进来。 communicate?
The students enter one by one. The repeated measure phrase shows distribution or progression. It does not specify the exact time between entries.
Build the form
- The pattern in this lesson is one / a一 + MW + one / a一 + MW (one by one). Locate it in the original interlinear examples below.
- Keep the words in their demonstrated positions; the pattern must fit the intended situation as well as the sentence form.
students学生one一个one一个come in进来。
Using the lesson pattern in this demonstrated example: Come in one by one: 一个 ____ 进来。
Repeat 一 + MW = one by one: 一个一个进来.
Read examples in context
- In the opening example, students学生one一个one一个come in进来。: The students enter one by one.
- Explain who acts, what is described and which time or group is relevant before choosing an English paraphrase.
What does 一步一步 mean?
Repeated measure = one at a time: 一步一步 (step by step).
Know the boundary
- The repeated measure phrase shows distribution or progression.
- It does not specify the exact time between entries.
Doubling 一 + MW spreads the action out, one at a time.
Yes: 一个一个, 一天一天, 一年一年.
In the opening situation: The students enter one by one.
The repeated measure phrase shows distribution or progression. It does not specify the exact time between entries. The students enter one by one.
Use the distinction
- The students enter one by one.
- The repeated measure phrase shows distribution or progression. It does not specify the exact time between entries.
Read the full reference: HSK 4 grammar — Adverbs.
Students enter through a narrow door separately. 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.