C ) y8 K" t# a% g# i( y6 ~( u* dto always kow about the most recent changes or developments in a particular situation or activity.4 \2 e% ]! t! _3 }; j+ w7 F5 d! z; c# q
e.g. ! a. A: V V) d. |/ a7 _" u" Speople with their finger on the pulse of fashion and pop culture.
发表于 2012-3-21 15:10:55
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