1. crowded adj. 拥挤的 be crowded with... 挤满了......
The bus was crowded with people.
crowd n.人群, 群众, 一堆(东西), 一伙 a crowd of lookers -on 一群围观的人
v. 群集, 拥挤, 挤满 They crowded into my room. 他们挤进了我的房间。
2. similarity n. (U) & (C) 类似;相似
similar adj. be similar in... to.... 在......方面与......相似 similarly adv.
There is a s___________________ between the sisters.
Copper is ____________ in color to gold.
They are s___________________ dressed.