Questions & Answers about zhège zhǐxiāng hái hěn wánhǎo.
In Mandarin, adjectives can often act as the predicate by themselves, so you usually do not use 是 before them.
So:
- 这个纸箱还很完好 = This box is still quite intact / still in good condition
But:
- 这个纸箱是很完好 sounds unnatural in normal speech
A good basic rule is:
- before nouns, 是 is common
- 他是老师
- before adjectives, 是 is usually not used
- 他很高
- 纸箱很完好
So here, 完好 is doing the job that intact / in good condition does in English.
Here 还 means still.
So 这个纸箱还很完好 means the box is still in good condition or is still intact.
This often suggests that the speaker may have expected damage, but the box remains fine anyway.
For example:
- 纸箱还很完好 = The box is still in good shape
- 他还在家 = He is still at home
In other contexts, 还 can also mean also, so learners often get confused. In this sentence, though, still is the correct meaning.