| 不 |
bù shí zhī xū | a possible period of want or need |
| 不 |
bù | no; not so / (bound form) not; un- |
| 不 |
bù shí | from time to time / now and then / occasionally / frequently |
| 时 |
shí | old variant of 时 |
| 时 |
Shí | surname Shi |
| 时 |
shí | o'clock / time / when / hour / season / period |
| 之 |
zhī | (possessive particle, literary equivalent of 的) / him / her / it |
| 需 |
xū | to require / to need / to want / necessity / need |