| 需 | xū | to require; to need; to want; necessity; need |
| 求 | qiú | to seek; to look for; to request; to demand; to beseech |
| 层 | céng | layer; stratum; laminated; floor (of a building); storey; classifier for layers; repeated; sheaf (math.) |
| 次 | cì | next in sequence; second; the second (day, time etc); secondary; vice-; sub-; infra-; inferior quality; substandard; order; sequence; hypo- (chemistry); classifier for enumerated events: time |
| 理 | lǐ | texture; grain (of wood); inner essence; intrinsic order; reason; logic; truth; science; natural science (esp. physics); to manage; to pay attention to; to run (affairs); to handle; to put in order; to tidy up |
| 论 | lún | the Analects (of Confucius) |
| 论 | lùn | by the; per; discuss; theory; to talk (about); to discuss |
| 需求 | xū qiú | requirement; demand (economics) |
| 层次 | céng cì | arrangement of ideas; administrative level; level; stage; phase |
| 理论 | lǐ lùn | theory; CL:个 |
