取自金山词霸
adj.（形容词）
Being in existence:
活的：处于存在中：
Our old dog is no longer around.
我们原来的狗已经死了
Being in evidence; present:
在场的：可看到的；存在于…的：
asked if the store manager was around.
问一问商店经理是否在场
... haven't been around for all that long!=...be aroung for+all that long.
for all that long表示时间.