The company cautioned, however, that while the cars don't pollute, production of hydrogen as a fuel does entail pollution.
The company cautioned, however, that while the cars don't pollute, production of hydrogen as a fuel does entail pollution.
然而宝马公司提到：虽然轿车本身不会污染环境，生产其燃料氢气所带来的污染是不可避免的。