离线跟踪
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off-tracking from line 直行跑偏
off-line tracking
以上为机器翻译结果，长、整句建议使用 人工翻译 。
This one provides off-line GPS tracking (read: cheaper than real-time) of your vehicle so you can see when, where, how fast and how aggressively your teen is abusing the family getaway-mobile.
ENGADGET: DriveSync tracks your kids' joyrides
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