基石 | jī shí | foundation stone / cornerstone / (fig.) basis / foundation | |
要件 | yào jiàn | key document / important condition / criterion / requirement / requisite / cornerstone | |
中流砥柱 | zhōng liú dǐ zhù | mainstay / cornerstone / tower of strength | |
奠基石 | diàn jī shí | foundation stone / cornerstone |