look about／around
1．be on the watch；be on the lookout提防；留心；注视；戒备
When you ride in the street you must look about lest you bump into someone．在街上骑自行车时，你必须留神四周，免得撞着别人。
Look about before you cross the street．过马路前，要四下看看。
2．turn one's eyes to；go about observing in（a country，town，etc．）观察；察看；游览
They spent two months in New York looking about the city．他们在纽约花了两个月的功夫游览该城。
The boy looked about with great interest．这男孩怀着极大的兴趣四周看看。
3．inspect or survey（moving about while doing so）视察；调查
You must look about before making the decision．你得考虑好了再作决定。
4．search around 四处寻找
I'm looking about for a house．我正在找房子。
For a whole month Bill went here and there，looking about for a job．整整一个月，比尔到处奔波找工作。