And, I mean, if I were to work with a design firm or a designer, and they were designing one of these, and they wanted to do it eco, they'd usually ask me two things.
我是说，要是我和一家设计公司 或和一位设计师工作，他们在设计这类东西， 想要把它做得生态环保， 他们通常都会问我两件事。