| 可 |
kě chí xù | sustainable |
| 可 |
kě | (prefix) can; may; able to; -able / to approve; to permit / to suit / (particle used for emphasis) certainly; very / but; however |
| 可 |
kè | used in 可汗 |
| 持 |
chí | to hold / to grasp / to support / to maintain / to persevere / to manage / to run (i.e. administer) / to control |
| 持 |
chí xù | to continue; to last; to persist |
| 续 |
xù | to continue / to replenish |