而很多时候他们无法将他们的需求说出来,这时候asl(american sign
american sign language asl alphabet
alpahbet sign字母手语2,3-6岁千万别错过
签署 · 这里 · 贴纸 · 业务 / close up view of the sign here
收藏美国手语asl初学者手语学习资源
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