他没法躲开成群的记者。He could not escape the massed ranks of newsmen.他所到之处都有成群的歌迷簇拥着他。Every-where he went he was mobbed by a crush of fans.毛毛虫总是成群进食。The caterpillars feed in large colonies....
In the word " unimportant " , " un - " is a prefix.在单词 unimportant 中un是前缀.Fill in each blank with a proper negative prefix.用适当的表示否定的前缀填空.We prefix " Mr. " to a man's name.我们在男士的姓名前加 " 先生 "....