1ecology (the study of interactions between organisms and their environment)
2ecological state (the condition or health of a natural environment)
3(fig.) ecosystem (a complex network, e.g. in tech, business or media, as in 數字生態|数字生态[shu4 zi4 sheng1 tai4] "digital ecosystem")
Example
tā她kāi shǐ开始duì对shēng tài生态xué学gǎn xìng qù感兴趣，shì是shòu dào受到tā他de的yǐng xiǎng影响。
她开始对生态学感兴趣，是受到他的影响。
It was through his influence that she became interested in ecology.