Innovative Technology Design Competition organized by Lok Sin Tong (Sing Tao Daily) Back

輪椅落斜坡免翻側 中學生設計奪冠 (Sing Tao Daily) (星島日報).png

Innovative Technology Design Competition organized by Lok Sin Tong (Sing Tao Daily) Back

輪椅落斜坡免翻側 中學生設計奪冠 (Sing Tao Daily) (星島日報).png