9岁儿童申请NASA工作

galaxy – n. any one of the very large groups of stars that make up the universe

conceive – v. to think of or create (something) in the mind

species – n. a group of animals or plants that are similar and can produce young animals or plants : a group of related animals or plants that is smaller than a genus

microbe – n. a small living thing that can only be seen using a microscope

adore – v. to love or admire something very much

emoji – n. a small digital image used to express an idea in electronic messages

alien – n. a creature that comes from somewhere other than the planet Earth