Meaning of gēn zōng:
跟踪
to follow sb's tracks; to tail; to shadow; tracking
Jǐngchá zài xiǎoxīn de gēnzōng xiányífàn.
警察在小心地跟踪嫌疑犯。
The police are carefully following the suspect.
Tā tōutōu de zài hòu miàn gēnzōng tā.
他偷偷地在后面跟踪她。
He secretly tailed her from behind.
Jǐngchá zhèngzài gēnzōng xiányífàn.
警察正在跟踪嫌疑犯。
The police are shadowing the suspect.
Zhè duàn shíjiān wǒmen yīzhí zài jìnxíng xiàngmù de gēnzōng.
这段时间我们一直在进行项目的跟踪。
We have been doing project tracking during this time.