慢速英语:Lower East Side Tenement Museum Recreates Life in New York for Immigrants 100 Years Ago

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2.sewing n.缝纫,针线活

例句：Cooking,sewing,and house keeping are household arts.
      煮饭、缝衣和料理家务都是持家的艺术。

3.motion vt.(向…)打手势, 示意

例句：The teacher motioned the boy to study.
      老师示意那个孩子去学习。

4.immigrant n.移民

例句：Canada has many immigrants from Europe.
      加拿大有许多欧洲移民。

5.ancestor n.祖先, 祖宗
 
例句：She has worshipped her ancestor.
      她已拜过她的祖先。

6.evolve vt.vi.演变; 进化

例句：Language is constantly and gradually evolving.
      语言在不断地缓慢发展。

      He has evolved a new theory.
      他已形成了一种新学说。