pen /pɛn/ CET4 TEM4 ( penning, penned, pens )

• 1. 

  N-COUNT A pen is a long thin object which you use to write in ink. 钢笔

• 2. 

  V-T If someone pens a letter, article, or book, they write it. 撰写 [正式]

  例：

  I really intended to pen this letter to you early this morning.

  我本来真的打算今天一大早就给你撰写这封信的。

• 3. 

  N-COUNT A pen is a small area with a fence around it in which farm animals are kept for a short time. (临时圈养牲畜的) 圈

  例：

  ...a holding pen for sheep.

  …一个羊群候宰圈。

• 4. 

  V-T If people or animals are penned somewhere or are penned up, they are forced to remain in a very small area. 关 (人或动物) [usu passive]

  例：

  The cattle were penned for the night.

  这头牛晚上被关了起来。

  例：

  The animals were penned up in cages.

  这些动物被关在笼子里了。

• 5. 

  N a female swan 母天鹅

• 6. 

  N penitentiary的缩写 [美国英语] [非正式] → short for penitentiary