在《PONS词典》中的词汇
I. research [rıˈsɜːtʃ] 名词
operational research 名词, operations research
- operational research
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operations research 名词
operations research → operational reasearch
| I | research | |
|---|---|---|
| you | research | |
| he/she/it | researches | |
| we | research | |
| you | research | |
| they | research |
| I | researched | |
|---|---|---|
| you | researched | |
| he/she/it | researched | |
| we | researched | |
| you | researched | |
| they | researched |
| I | have | researched | |
|---|---|---|---|
| you | have | researched | |
| he/she/it | has | researched | |
| we | have | researched | |
| you | have | researched | |
| they | have | researched |
| I | had | researched | |
|---|---|---|---|
| you | had | researched | |
| he/she/it | had | researched | |
| we | had | researched | |
| you | had | researched | |
| they | had | researched |