- 用 verbto useTo use; to employ; to apply or make use of something to achieve a purpose.
- 之 pronounitUsed only in the object position to refer to a person or thing already mentioned, meaning "him", "her", "it", or "them".
- 不竭 adjectiveinexhaustibleunending; never-failing; used to describe a source that does not run dry or a supply that is never used up