自从Helen不幸地失明和失聪后，她学会了用手语字母表交流。

Since Helen was deaf and blind, she learned to communicate via a manual alphabet.

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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。

If you make an "OK" sign with your thumb and finger, that is the shape for the letter "f" in American sign language.

youdao

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。

If you make an "OK" sign with your thumb and finger, that is the shape for the letter "f" in American sign language.

youdao