ㄊㄧˊㄈㄤˊtífáng

dīfangㄉㄧ ˙ㄈㄤ
  1. 防範小心戒備 提防扒手行竊」、提防個人資料外洩」。

to guard against, to be vigilant, watch you don't (slip)​, also pr. [ti2 fang2]
se prémunir contre, se méfier, vigilant