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!