1. 尖锄，镐，镐   pickax, pickaxe, pick axe   concrete   builder   rafter   Hint Half-n-half Clue   2. 脚手架   stone   scaffolding   cement   helmet, hard hat   Half-n-half Clue   3. 板，板条   crane   board, plank   stone   brick   Half-n-half Clue   4. 建造者   mason, bricklayer   helmet, hard hat   crane   builder   Half-n-half Clue   5. 水泥   builder   cement   soldering iron   wheelbarrow   Half-n-half Clue   6. 射线   level   beam   pickax, pickaxe, pick axe   concrete   Half-n-half Clue   7. 椽木   helmet, hard hat   rafter   mason, bricklayer   concrete   Half-n-half Clue