yóuyú dàikuān bǐjiào xiǎo, yīncǐ wǎngsù hěn màn.

Because the bandwidth is relatively low, the internet speed is therefore very slow.

Breakdown of yóuyú dàikuān bǐjiào xiǎo, yīncǐ wǎngsù hěn màn.

• 很hěn: very
• 比较bǐjiào: relatively
• 小xiǎo: small
• 慢màn: slow

Questions & Answers about yóuyú dàikuān bǐjiào xiǎo, yīncǐ wǎngsù hěn màn.

Why does the sentence use both 由于 and 因此? Isn’t one of them enough?

Yes, often one is enough.

In this sentence:

• 由于 introduces the cause/reason
• 因此 introduces the result

So the structure is:

• 由于 A，因此 B
• Because A, therefore B

This is a very clear and slightly more formal way to show cause and effect.

You can also say:

• 由于带宽比较小，网速很慢。
• 因为带宽比较小，所以网速很慢。

All of these are natural. Using both words together makes the logical relationship especially explicit.

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What is the difference between 由于 and 因为?

Both can mean because, but they are not exactly the same in tone.

• 因为 is very common in everyday speech
• 由于 is a bit more formal and is often seen in writing, explanations, reports, and technical contexts

So in a sentence about bandwidth and internet speed, 由于 sounds quite natural because the topic is a little technical.

Compare:

• 因为带宽比较小，所以网速很慢。
  More conversational
• 由于带宽比较小，因此网速很慢。
  More formal / explanatory

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What does 比较 mean here? Does it mean compare?