They have installed bar iron outside the window in order to prevent thieves invading.

他们在窗户上装上铁条以防止盗贼入侵。

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The windows had been boarded and nailed up to prevent thieves from entering the empty house.

窗户上钉上了木板，以防小偷进入这所空房。

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Residents should place some flowerpots of different sizes to prevent thieves from climbing on balconies to steal when people are sleeping.

为防止窃贼趁人熟睡之机爬上阳台入室行窃，可以在阳台护栏平顶处将大小花盆适当灵活摆放。

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Both vehicles were manufactured with special keys that include a chip to prevent thieves from starting the vehicle without the key.

FORBES: Honda Manufactured the Most Stolen Cars in 2011