Nike has made attempts to clean up its image, but according to critics, it hasn’t done enough.

耐克已尝试清理其形象， 但据批评人士称，它做得还不够。

Either the encrypted material itself or the decompression instructions could contain a malicious computer-network-destroying code that would be inadvertently activated as attempts to read the communication were made.

加密材料本身或者解压缩指令可能包含恶意的计算机网络破坏代码，这些代码在尝试读取交流信息时会无意中被激活。

His attempts were not very successful, but he did in fact make attempts to improve the situation, especially in terms of the legal rights of blacks in the U.S. during this period.

他的尝试不是很成功，但他确实做出了改善这种情况的尝试， 尤其是在这一时期美国黑人的合法权益方面。