1如释重负：in relief
2形成：form；take shape；shape；come into being ；formation; produce
3表演:Perform ; Performance;Show ;Acting ;put on performances
4坚持:persist in；persevere in；uphold；insist on；stick to；adhere to
5与 、、熟悉起来:be/get familiar with
6 突然笑起来:burst into laughte