When they are brought back to the earth, these seeds produce vegetables that are bigger, healthier and more nutritious (有营养的) than normal vegetables.
这些种子被带回地球后，种出的蔬菜比普通蔬菜更大、更健康、更有营养。
2
It's difficult to readjust to life on Earth, to go from being a temporary cosmonaut to being a normal civilian.
重新调整以适应地球生活是困难的，从临时宇航员到普通平民的适应也是一样。
3
It is a normal element cycled around in the earth and my science, which is looking back in time, is saying we have had a planet that has been a green, warm wet planet 80 per cent of the time.