（两端之间的距离大， 兼指时间和空间） long:

• 夏季昼长夜短。

  In summer the days are long and the nights short.

• 这条河很长。

  This is a long river.

（引申为永远） forever; lasting:

• 与世长辞

  depart from the world forever; pass away

（长度） length:

• 那座桥有200米长。

  The length of the bridge is 200 metres.

• 这只艇以3艇长之差得胜。

  The boat won by three lengths.

（长处） strong point; forte:

• 取人之长，补己之短

  overcome one's shortcomings by learning from others' strong points

（姓氏） a surname:

• 长武子

  Chang Wuzi

（对某事做得特别好; 擅长） be good at; be strong in:

• 她长于绘画。

  She is good at painting.; Painting is her forte.

（常） often:

• 细水长流

  go about sth. little by little without a letup

（年纪较大） older; elder; senior:

• 比她年长

  older than her;

• 家兄比我年长两岁。

  My brother is senior to me by two years.

• 他比我长一辈。

  He belongs to my father's generation.

（排行最大） eldest; oldest:

• 长女

  eldest daughter;

• 长兄

  eldest brother

（领导人） chief; head; leader:

• 代表团团长

  head of a delegation;

• 董事长

  chairman of the board;

• 科长

  section chief;

• 一家之长

  the chief of a family

（生） come into being; begin to grow; form:

• 长癌

  get cancer;

• 长疮

  have a boil;

• 长锈

  get rusty;

• 桃树长虫了。

  The peach tree is wormy.

• 这些树二月里长叶子。

  These trees come into leaf in February.

（生长; 成长） grow; develop:

• 青年时期是长身体的时期。

  Youth is the time of physical growth.

• 她长得比母亲都高一点了。

  She has grown so that she is even a little taller than her mother.

• 庄稼长得很旺。

  The crops are growing very well.

（增进; 增加） acquire; enhance; increase:

• 长见识

  increase one's knowledge; gain experience;

• 此风不可长。

  Such a tendency is not to be encouraged.