Beginner Level Advanced Level

INTERMEDIATE LEVEL


Content

→ → →
GBENDE: 混凝土 concrete Beton








like: hùnníngtǔ → →
Beton ☊ 混凝土 ☊ hùnníngtǔ
Stahlbeton ☊ 钢筋混凝土 ☊ gāngjīn hùnníngtǔ