长期以来的用法和样例:
例句
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长期以来,人类一直在同无情的自然力作斗争。
Man has struggled long against the brute forces of nature. -
我们长期以来一直支持绿党保护生态环境的目标。
We have long sympathized with the aims of the Green Party. -
他长期以来一直努力解决该问题。
He has been grappling with the problem for a long time.