流程图Task 1Housing·EnergyThe diagram below shows how a central heating system in a house works.写这篇作文查看 1 篇同题作文→
流程图Task 1Energy·HousingThe diagram below shows how a central heating system in a house works.写这篇作文对比 2 篇同题作文（5.5–6分）→
流程图Task 1Water·HousingThe following diagram shows how rainwater is reused for domestic purposes.写这篇作文查看 1 篇同题作文→