a thick-skinned variety of grape的用法和样例：
- You need a thick skin to be a politician.
- An excellent leader need a thick skin.
- He has an honest nature and a thick skin, and never cares a bit about other people's criticisms.
- Grape variety that is the basis of the DOCG Albana di Romagna. The grapes have a thick skin peel which offers protection against rot.
- A variety of apple having fruit with dark red skin.