You must use a low gear to drive up the hill.

开车上山你要用低速档.

辞典例句

Use a low gear to drive up the hill.

开车上山用低速档.

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You have to change down when you drive up a slope.

当你开车爬坡时,得换成低速档.

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Please gears down the motor speed.

请换到低速档.

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Why are low gears important for folding bikes?

为什么低速档对折叠车如此重要?

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