generally difficult to change
通常很难改变
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Proposals to alter those systems are never taken lightly, and even when proposals are embraced, the change is generally difficult.
更改那些系统的提议从未被轻视，即使这些提议已经被接收，但改变通常是十分困难的。
youdao
These are all factors which, generally speaking, are difficult to change.
总的说来，这些因素是难以改变的。
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