sì四fourtōng通connectbā八eightdá达reach
Extend in all directions; accessible from all sides.
Literal meaning
four (四) — connect (通) — eight (八) — reach (达)
Origin
A classical four-character phrase describing a well-connected network of roads or transportation.
Examples
Zhè这ge个chéng城shì市de的jiāo交tōng通sì四tōng通bā八dá达。
The transportation in this city extends in all directions.
Gāo高sù速gōng公lù路shǐ使zhè这ge个dì地qū区sì四tōng通bā八dá达。
The highway makes this area accessible from all sides.
Usage & nuances
Often used to describe a place or system that is well-connected and easy to navigate.
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