盯梢 [－－]

Jyutping ding1 saau1
Pinyin dīng shāo

Definitions (CC-CEDICT)
  1. to follow sb
  2. to tail
  3. to shadow
Definitions (Wiktionary)
  1. verb
    to follow (go after someone in secret); to tail; to shadow
    (syn.) 当缀, 當綴