Yes, I see. But the harbor officers from the European countries often check the sulphur content in the fuel.

是的，我明白，但是欧洲的港口官员经常检查燃油硫含量。

youdao

Yes, I see. But the harbor officers from the European countries often check the sulphur content in the fuel.

是的，我明白，但是欧洲的港口官员经常检查燃油硫含量。

youdao