They signify the popularity of interactive advertising.
出自-2016年6月閱讀原文
We learn from the first paragraph that the sound of a forest signifies its health condition.
出自-2013年6月閱讀原文
the sound of a forest signifies its health condition
出自-2013年6月閱讀原文
It signifies a change in American economic structure.
出自-2011年12月閱讀原文
They also focused on important rituals that appeared to preserve a people’s social structure, such as initiation ceremonies that formally signify children’s entrance into adulthood.