[译] 一切真正的知识都来源于直接经验。
[误] All genuine knowledge originates in direct experiences.

[正] All genuine knowledge originates in direct experience.
[注] 名词 experience ( = knowledge gained by doing or seeing things) 作“经验”解时不用复数。又如：Has he had much experience in work of this sort? 做这类工作他有足够的经验吗？如果作“阅历”解时，可用复数，如：He told us about his experiences abroad. 他告诉我们他在国外的种种经历。