They communicated in sign language.

他们用手语沟通。

《牛津词典》

All our staff have been instructed in sign language.

我们的员工都接受过手语训练。

《牛津词典》

How is "Welcome" said in sign language?

怎么用手语说“欢迎”？

youdao

She has studied the social meaning of American Sign Language as well as the Al-Sayyid Bedouin Sign Language in Israel.

VOA: special.2010.10.01

At each cross-section, people are either willing to use a certain sign in a certain way or they're not.

在每一个横街面上，人们可以自由的,以自己的方式使用符号。

耶鲁公开课 - 文学理论导论课程节选

There's a wonderful case in Nicaragua in sign language where they acquire sign language from adults who themselves are not versed in sign language.

研究者在尼加拉瓜曾做过,一个精彩的手语个案研究,儿童们从本身并不熟悉手语的成年人那里,习得手语

耶鲁公开课 - 心理学导论课程节选

Last year the site saw a massive increase in sign-ups on February 15, largely married women.

FORBES: Washington D.C.: Capital of Marriage Infidelity

How many sign language interpreters are there who, like Callis, specialize in sign language interpreting?

FORBES: Lydia Callis and the Biggest Industry You've Never Heard Of

Frustrated with the clinic, they enrolled Jacob in sign-language education, and then learned the language so that they could communicate with him.

NEWYORKER: Little Strangers