The Romans would never have found time to conquer the world if they had been obliged first to learn Latin.
麻雀因孔雀驮著翎尾而替它担忧。
实现净零排放的道路并不容易，但这对我们的生存是必要的。
制造链式反应机器的基本点当然是确保每次裂变产生一定数量的中子，其中一些中子将再次产生裂变。
People are curious. A few people are. They will be driven to find things out, even trivial things. They will put things together, knowing all along that they may be mistaken. You see them going around with notebooks, scraping the dirt off gravestones, reading microfilm, just in the hope of seeing this trickle in time, making a connection, rescuing one thing from the rubbish.