xiànhuì gàosù tā shénme shíhòu zhuǎnwān ， háihuìyòng shēngyīn tíxǐng tā ， qiánfāng sānbǎimǐ yòuzhuǎn 。

线会告诉她什么时候转弯，还会用声音提醒她，前方三百米右转。

The line tells her when to turn and reminds her by voice: turn right in three hundred meters.