vt.

1. 排出（液体，气体等）
   Some factories in this locality still discharge waste water into the river.

   这一地区有些工厂仍把废水排入河中。

2. 允许……离开；释放；解雇[H][（+from）]
   My brother was discharged from hospital last week.

   我兄弟上周出院。

3. 使免除，使卸脱[（+from）]
4. 履行，清偿
   He discharged the responsibilities of his job whole-heartedly.

   他全心全意地履行自己的职责。

5. 卸（货物等）；卸下（船）上的货物[（+from/of）]
   They discharged the cargo at Hong Kong.

   他们在香港卸了货。

6. 射出；开（炮等）[（+at/into）]
7. 【律】撤销（法院命令）

vi.

1. 排出液体（或气体等）；（江河）流注[Q]
2. （船等）卸货
3. （枪炮等）发射
4. （水泡）出水
   The wound discharged constantly.

   伤口不断地流脓。

n.

1. 排出，流出[U]
2. 释放；解雇[U]
   The prisoner was glad to get his discharge.

   囚犯获准释放，感到很高兴。

3. 解职令；退伍证明书[C]
4. 执行，履行[U]
   She is competent in the discharge of her duties.

   她善于履行职责。

5. 卸货[U]
6. 发射，开炮[U]
7. 放出气体，液体；放出的电[C]

v.

1. officially allow (someone) to leave somewhere, especially hospital.
   ▸dismiss from a job.
   ▸release from the custody or restraint of the law.
2. emit or send out (a liquid, gas, or other substance).
   ▸Physics  release or neutralize the electric charge of (an electric field, battery, etc.).
   ▸fire (a gun or missile).
   ▸unload (goods or passengers) from a ship.
3. do all that is required to fulfil (a responsibility) or perform (a duty).
   ▸release from a contract or obligation.
   ▸Law  relieve (a bankrupt) of residual liability.
4. Law  (of a judge or court) cancel (an order of a court).

n.

1. the action of discharging.
2. a substance that has been discharged.
   ▸a flow of electricity through air or other gas, especially when accompanied by emission of light.