在《PONS词典》中的词汇
 
  
 I. reef [ri:f] 名词
cor·al ˈreef 名词
ˈreef knot 名词
 
  
 有关地理学的词语(Klett)
有关生物学的词语(Klett)
| I | reef | 
|---|---|
| you | reef | 
| he/she/it | reefs | 
| we | reef | 
| you | reef | 
| they | reef | 
| I | reefed | 
|---|---|
| you | reefed | 
| he/she/it | reefed | 
| we | reefed | 
| you | reefed | 
| they | reefed | 
| I | have | reefed | 
|---|---|---|
| you | have | reefed | 
| he/she/it | has | reefed | 
| we | have | reefed | 
| you | have | reefed | 
| they | have | reefed | 
| I | had | reefed | 
|---|---|---|
| you | had | reefed | 
| he/she/it | had | reefed | 
| we | had | reefed | 
| you | had | reefed | 
| they | had | reefed | 
