1. qi [chong;zhong] ji   scaffolding   cement   wheelbarrow   crane   Hint Half-n-half Clue   2. ju [ti;ti]   stone   concrete   builder   ladder   Half-n-half Clue   3. tu zhi   pickax, pickaxe, pick axe   measure tape   concrete   blueprints   Half-n-half Clue   4. [ni;ni] gong ，[wa;wa] gong   builder   stone   mason, bricklayer   scaffolding   Half-n-half Clue   5. han tie   stone   soldering iron   cement   shovel   Half-n-half Clue   6. kui jia ，an quan mao   pickax, pickaxe, pick axe   level   wheelbarrow   helmet, hard hat   Half-n-half Clue   7. jian chu ，[gao;hao] ，[gao;hao]   pickax, pickaxe, pick axe   board, plank   wheelbarrow   shovel   Half-n-half Clue