Придумать 3 предложения с какими-небудь из этих слов:different,be polluted,be able to,exist,mini-submarines have enought,bellive,fuel

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Mini-submarines have enough fuel to explore different underwater environments without worrying about running out of energy.I believe that we should take action to protect our oceans from being polluted by implementing stricter environmental regulations.With advancements in technology, mini-submarines are now able to exist and operate at depths that were once thought to be unreachable.