Even digit groups use even digit groups.

1, by chance, means suddenly, unexpectedly and infrequently.

2. Occasionally, occasionally; Sometimes; Generally speaking, every three to five days; Occurring by accident, unplanned, irregular, and irregular.

3. Idol refers to a sculpture that people worship and worship, and it is a metaphor for a symbol with some mysterious power in people's minds.

Puppet is a figure carved from wood or something similar to other creatures, which is usually used to describe dementia.

5. Duality is a rhetorical way to express two corresponding or similar meanings with a pair of phrases or sentences with the same number of words, the same structure and symmetrical meaning.

6, even number, the number in the integer that can be divisible by 2 is called even number.

7, spouse, spouse is a Chinese vocabulary, also known as husband and wife.

8. Coincidentally, there are more than one pair. It means two things or two people are very similar.