2 sentences

1. 他是怎么知道我们的行踪的？

   tā shì zěn​me zhī​dao wǒ​men de xíng​zōng de?

   How did he know of our whereabouts?

   Source: CCMatrix

2. 警察每天给他打电话检查他的行踪。

   jǐng​chá měi​tiān gěi tā dǎ diàn​huà jiǎn​chá tā de xíng​zōng.

   The police call him every day to check his whereabouts.

   Source: CCMatrix