even if we adults are willing to spend the money

we can't buy a block of time for English practice.

Da Vinci could draw an egg for a million times because he had plenty of time. If I drew an egg 5 times a day, it would take me more than 20 years to achieve the goal. By that time, I would be too old to be an expert on egg drawings

Life is short.Time is money. That couldn't be truer.

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