随着经验的积累，情况也年年变化。
这一不平坦的历程，既积累了的丰富经验，也留下了深刻的教训。
This course is not flat, accumulated rich experience, and also left a profound lesson.
也积累了一些教学经验。
在沿海软土地区也积累了成功的建设经验。
Thus much construction experience in collapsible soft soil is accumulated.
同时我们也积累了大量的实践经验。
Meanwhile, it has also accumulated a great deal of working experience.
同时我们也积累了大量的实践经验。
Meanwhile, it has also accumulated a great deal of working experience.
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