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The prosthetic leg is an important part for the above-knee amputee to stand up and walk.
单腿膝上截肢的残疾人欲站立行走，假腿便要成为他们身体的重要组成部分。
youdao
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The prosthetic leg is an important part for the above-knee amputee to stand up and walk.
单腿膝上截肢的残疾人欲站立行走，假腿便要成为他们身体的重要组成部分。
youdao