The children went to school by bus.
Meaning: This sentence describes the children's journey to school. The children traveled to school using a bus.
Choice of Words: Went means to move from one place to another. School is a place where children go to learn. Bus is a large vehicle that carries people. When you put them together, "The children went to school by bus" means that the children moved from one place to another to a place where children go to learn using a large vehicle that carries people.
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Related Expressions