| xū | to require/to need/to want/necessity/need |
| 需 | to require to need to want |
| 需光生存的 | photobiotic |
| 需氧微生物 | aerobium; aeromicrobe; aerobe; aerobic microorganism |
| 需氧生物 | aerobiont; aerobian; aerobe |
| 需氧菌 | aerobe; aerophil; aerobic bacterium; aerobic bacteria |
| 需氧量 | oxygen demand; oxygen requirement |
| 需水量 | water requirement; water demand |
| 需求 | requirement demand (economics) |
| 需求价格 | demand price |
| 需求膨胀 | demand inflation; demand-pull |
| 需求量 | demand |
| 需用 | Money that needs to be spent, or things that need to be used. |
| 需要 | to need to want to demand |
| 需要功率 | [Electrics] required power |
| 需要是发明之母 | Necessity is the mother of invention (European proverb). |