被卡住了 - 翻譯

請大家幫幫忙
以下句子是商業類文件
社會責任相關
句子的前面跟後面都看的懂
但是從畫線的by some到by many部分的文法結構有點搞不清楚
by some 跟by many是指什麼呢？
有沒有人可以幫忙分析一下
並講解大概的意思呢？
謝謝！！



We are in an ambiguous period where signs of increased

corporate citizenship by some must be juxtaposed against
^^^^^^^

indifference by many and continuing negative social and
^^^^^^^

environmental trends on many indicators.


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