1. 梯子   cement   beam   board, plank   ladder   Hint Half-n-half Clue   2. 铁锹   bulldozer   cement   rafter   shovel   Half-n-half Clue   3. 滑轮   pulley   pickax, pickaxe, pick axe   bulldozer   shovel   Half-n-half Clue   4. 石头   stone   cement   builder   bulldozer   Half-n-half Clue   5. 建造者   builder   concrete   crane   shovel   Half-n-half Clue   6. 板，板条   cement   ladder   pulley   board, plank   Half-n-half Clue   7. 推土机   bulldozer   pickax, pickaxe, pick axe   measure tape   builder   Half-n-half Clue