1. 具体   rafter   soldering iron   concrete   pulley   Hint Half-n-half Clue   2. 石头   builder   stone   measure tape   ladder   Half-n-half Clue   3. 砖   brick   board, plank   measure tape   cement   Half-n-half Clue   4. 椽木   bulldozer   rafter   mason, bricklayer   blueprints   Half-n-half Clue   5. 尖锄，镐，镐   pulley   concrete   pickax, pickaxe, pick axe   blueprints   Half-n-half Clue   6. 射线   beam   concrete   measure tape   level   Half-n-half Clue   7. 起重机   measure tape   concrete   blueprints   crane   Half-n-half Clue