1·They communicated in sign language.
他们用手语沟通。
—— 《牛津词典》
2·Sign language is a 3D language.
手语是3D立体语言。
3·When you talk about gorilla language, do you mean like, those experiments where humans taught them sign language?
当你讲到大猩猩的语言时，你指的是像人类教它们手语的那些实验吗？
4·I don't understand sign language.
我不懂手语。
5·You can learn sign language!
你可以学手语！
1·And, best of all, to communicate with people, parrots don't need devices built with buttons to push, and they don't need to be taught sign language: they can learn to speak.
而且，最大的好处是，与人类交流，鹦鹉不需要设有按钮的装置，也不需要教给它们手势语：它们能够学会说话。
2·They talk in sign Language.
他们用手势语相互交谈。
3·With a new environment, the gal learnt sign language and started a new life.
在全新的环境里，女孩学会了手势语，开始了新的生活。
4·The figure language mainly has facial language, prospect of a solution language, sign language;
体态语主要有面部语、眉目语、手势语；