If you make an "OK" sign with your thumb and finger, that is the shape for the letter "f" in American sign language.
如果你用拇指和其他手指做一个 “OK” 的手势，那就是美国手语中字母 “f”的形状。
Sign language and finger spelling are not uesd as much as they once were.
盲文和手语现在已经不像以前用的那么多了。
How to recognize sign language mixed with hand gesture signal and finger spelling signal?
如何识别既包含手指语信号又包含手势语的信号的手语?。
How to recognize sign language mixed with hand gesture signal and finger spelling signal?
如何识别既包含手指语信号又包含手势语的信号的手语?。
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