What couplets are there about space flight?

1, inside and outside the flame blast furnace; The research of space exploration is of far-reaching significance.

2, practicing hard for 18 years, and fulfilling the dream of aviation; If you want to be in the top nine, you will serve your country ambitiously.

3. After 18 years of cloudless days; I am ambitious and arrogant because of my dream of flying in the air.

Couplets must have the following characteristics:

1, words are equal and sentences are consistent. In addition to deliberately leaving a word position to achieve a certain effect, the number of words in the upper and lower couplets must be the same, neither more nor less.

2, to be clear-cut, and harmonious tone. The traditional habit is "pucker up and fall flat", that is, the end of the last sentence of the first part is puckered up and the end of the last sentence of the second part is flat.

3. Parts of speech should be relative and in the same position. It is generally called "virtual to virtual, real to real", which means that nouns to nouns, verbs to verbs, adjectives to adjectives, quantifiers to quantifiers, adverbs to adverbs and related words must be in the same position.

4. Be related to the content and run through it from top to bottom. The meanings of up and down links must be interrelated, but they cannot be repeated.

In addition, the traditional practice of hanging couplets must be written directly and pasted vertically, from right to left and from top to bottom, and cannot be reversed.