build unit的用法和樣例：
例句
- The landlord separated the unit into three smaller units.
業主把單位分成三個面積較小的鋪位。 - The relocation project owner may implement voluntarily relocation, may also entrust to have the relocation qualifications unit to implement the relocation.
拆遷項目業主可以自行實施的拆遷，也可以委託具有拆遷資格的單位實施拆遷。
