地铁站的墙上布满了来自不同艺术家的各种涂鸦标记。

The subway station walls are covered with various graffiti ___tags from different artists.

请在行李上贴上写有你名字的标签。

Please put ___tags with your name on your luggage.

记得给照片添加#旅行和#风景这样的标签，方便以后查找。

Remember to add ___tags like #travel and #scenery to your photos for easier searching later.

警察在远处跟踪那辆可疑的车辆。

The police ___tracked the suspicious car at a distance.