It's high time we went to the laboratory.
该是我们去实验室的时候了。
It's just struck midnight. It's high time we went(go)to bed.
现在午夜了，是时候睡觉了。用动词的过去式表示假设意义。
Based firmly in China, we went all out to seek a way out that cost the least money and time and bear the best fruits for high-speed railway development in China.
植根中国铁路这棵大树，嫁接国外先进技术，结出丰硕果实，以最小的代价，最短的时间，实现中国高铁梦，成为中国铁路的明智选择。
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