[译] 从广义上说，科学的发展是无止境的。
[误] Broad speaking, the development of science has no limits.

[正] Broadly speaking, the development of science has no limits.
[注] 副词 broad 与形容词 broad + ly 构成的副词搭配不同，如：The fact is broadly apparent. 事实是十分清楚的。/The old man was broad awake on his deathbed. 老人弥留之际十分清醒。