Asl has different grammar and structure than english .
美国手语与英语的语法和结构不同。
Video chat conveys these elements of asl .
视频聊天可以传达美国手语的这类元素。
Most babies can begin learning asl at about 6 to 8 months , he said .
大部分宝宝在6到8个月就能学习手语，他说。
A commercial for the new iphone , however , includes a brief conversation in asl between a couple .
不过在新的iphone的广告里，有一段简短的通过美国手语进行的双人对话。
Some deaf and hard of hearing use cochlear implants and hearing aids for spoken english , but many prefer asl , which is an important part of deaf culture .
