1. She was wary of strangers.
    她很警惕陌生人.

2. She gives me a wary (谨慎的) smile.
    她向我拘谨地笑了笑。

3. Police are wary of itinerants who cannot be traced to a recognized camp boundary or to four walls.
    警察当局对行踪漂忽的旅游者十分注意，因为难以查出这些人公认的营地或者居所。

4. Police are wary of itinerants who cannot be traced to a recognized camp boundary or to four walls.
    警察则对那些查不出有固定营地或住处的游荡者保持警惕。

5. Most were wary and many apprehensive as to how the Algerian business would turn out.
    至于阿尔及利亚的事态结果将会如何，大部分人持谨慎态度，许多人则感到担忧。