saturation

柯林斯词典

1. N-UNCOUNT Saturation is the process or state that occurs when a place or thing is filled completely with people or things, so that no more can be added. 饱和
Japanese car makers have been equally blind to the saturation of their markets at home and abroad. 日本的汽车制造商对国内外市场的饱和同样视而不见。
2. ADJ Saturation is used to describe a campaign or other activity that is carried out very thoroughly, so that nothing is missed. (运动、活动) 彻底的[ADJ n]
The concept of saturation marketing makes perfect sense. 饱和营销的概念很有道理。