计划虽然没有完成，但是预计不会有太多的变化。
The schedule isn't final, but we don't anticipate many changes.
虽然他们的任务混合了商业和政治军事的需要，但相关的探险者都完成了一些重要的科学任务，因为他们去了以前没有科学家去过的地方。
Although their missions blended commercial and political-military imperatives, the explorers involved all accomplished some significant science simply by going where no scientists had gone before.
虽然张骞没有完成他的工作，但他了解了西域36国的风土人情和文化。
Although Zhang didn't finish his job, he learned a lot about the places, people, customs and cultures of the 36 kingdoms in the Western Regions.
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