1 guarantee

2 to guarantee

3 to ensure

4 to safeguard

5 to pledge

6 classifier: 个 gè

1 excellent quality

1 character

2 intrinsic quality (of a person)

3 quality (of a product or service, or as in "quality of life", "air quality" etc)

1 essence

2 nature

3 innate character

4 intrinsic quality

1 temperament

2 personality traits

3 manners

1 in support or witness hereof (idiom)

1 to fix a price based on quality (idiom)

1 the dead cannot testify (idiom); dead men tell no tales

1 lit. the heart of a sheep in the skin of a tiger (idiom)

2 fig. impressive in appearance but lacking in substance

3 braggart

1 to degenerate (morally) (idiom)

2 to become depraved