large but impractical

基本解释

She shows that in large chunks of life, the simplistic search for the perfect choice is not only impractical, but leads to misery.
她表示，用人生的大部分时间来过分单纯地追求完美抉择，不仅无法实现，更会带来痛苦。
But a lengthy, voluntary process is impractical in the panic surrounding the failure of a very large, complex financial institution.
但是当下，大型复杂的金融机构的失败使得整个环境充斥着恐慌的情绪，而这一漫长而无偿的过程在这么一种环境中很难实现。
As discussed above, file-level compression of large files might be impractical; but as expected, file-level compression achieves better results since it looks for repeated strings in the whole file.
正如上面所讨论的，对大文件进行文件级别的压缩可能不太实际；但正如预期的那样，文件级别的压缩会取得更好的结果，因为它是在整个文件中寻找重复的字符串。