Sign language has long played a vital role in communication among deaf and mute people; however, it does not help them communicate with those that don't understand it.

手语一直在聋哑人的日常交流中发挥重要作用，但是，对不懂手语的人来说却没有多大帮助。

youdao

Sign language has long played a vital role in communication among deaf and mute people; however, it does not help them communicate with those that don't understand it.

手语一直在聋哑人的日常交流中发挥重要作用，但是，对不懂手语的人来说却没有多大帮助。

youdao