因为...所以... explicitly marks cause and result: because X, therefore Y.
Cause-result chain - 因为 gives reason, 所以 gives outcome
Good for clear explanations - especially in formal or learner speech
Can omit one side in context - but full pair is common in teaching contexts
See examples below for varied real-world usage.
Cause should precede/result align
- Ensure Y is a consequence of X.
Avoid redundancy overload
- In natural speech, one marker may be omitted if context is obvious.
Do not misuse as contrast connector
- For contrast, use 但是/可是, not 所以.
Because it rained today,I did not go out.
Because he prepared well,he performed very well.
Because of traffic,we were late.
Because time was limited,we handled key points first.
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