Time expression ... / ...時間... structures describe temporal span, reference period, or scheduling window in concise forms.
Time anchoring - sets when/how long an event holds
Duration/reference flexibility - from short intervals to broad periods
Planning narrative utility - schedules, routines, historical framing
See examples below for varied real-world usage.
Choose proper time unit and scale
- Minutes/hours/days should match context.
Differentiate point-in-time vs duration
- Avoid mixing two functions ambiguously.
Place time phrase naturally in clause
- Keep sentence rhythm and logic clear.
During this period, we focus on internal optimization.
During working hours, please avoid personal calls.
In this time period, I learned a lot.
At this point in time, expansion is not suitable.
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