Việt
mặt đất chắc nịch
đất cứng
đất rắn
Anh
firm ground
hard
solid formation
solid ground
Đức
tragfaehiger Boden
Pháp
sol résistant
terrain résistant
terrain solide
firm ground,solid formation,solid ground
[DE] tragfaehiger Boden
[EN] firm ground; solid formation; solid ground
[FR] sol résistant; terrain résistant; terrain solide
firm ground, hard