是迥然不同的观点之间的碰撞改变了人们的看法。It's the collision of disparate ideas that alters one's perspective.有一颗小行星可能会与地球发生碰撞。There is an asteroid on a collision course with the Earth.我感觉到一点儿轻微的碰撞，便立刻意识到发生了什么。I felt a little bump...
Remember, keep a positive attitude and good things will happen.记住：保持乐观的心态，好事自然会发生。Do not wait for good things to happen to you. You need to walk towards happiness.不要等待好事降临，你要向幸福进发。Good luck is when an opportunity comes a...
地球外存在生命的理论是基于陨星上存在碳化合物质这一事实的.One theory about the existence of extraterrestrial life rests on the presence of carbon compounds in meteorites.在蛋自质中, 氮原子与碳 、 氢、氧原子相化合.In proteins, atoms of nitrogen are combined with carbon...