adj.協(xié)定的；商議好的；一致的
動詞concert的過去式和過去分詞.
As if this had been a concerted signal, the back door was struck rudely. 仿佛是在按照一個事先約定好的信號行事,后門頓時被不客氣地捶了起來。
There has been a concerted campaign against the proposals. 人們將采取一致行動反對這些提議。
