- 重点词汇
- 航天
space flight; astronautics; aeronautics; go into space; engage in spaceflight
- 一号
first day of the month
- 方便
convenient; handy; easy; facilitative; user-friendly; relieve; facilitate; make it easy; make convenient; spend a penny; have money to spare or lend; conveniently; easily; handily; convenience
- 官网
official website