with wired setups, the fear is that a burglar might be able to shut your system down simply by cutting the right cable.
2016年12月四級(jí)真題（第一套）閱讀 Section B
Infants are wired to look at parents' faces to try to understand their world, and if those faces are blank and unresponsive-as they often are when absorbed in a device——it can be extremely disconcerting for the children.