1. hua lun   concrete   pulley   soldering iron   stone   Hint Half-n-half Clue   2. [dan;shi] tou   wheelbarrow   stone   builder   helmet, hard hat   Half-n-half Clue   3. ti zi   board, plank   ladder   cement   beam   Half-n-half Clue   4. [jia;jiao;jue] shou jia   ladder   crane   scaffolding   shovel   Half-n-half Clue   5. zhuan   bulldozer   beam   brick   scaffolding   Half-n-half Clue   6. tie qiao   concrete   blueprints   board, plank   shovel   Half-n-half Clue   7. du lun [che;ju]   wheelbarrow   beam   rafter   pulley   Half-n-half Clue