I should have changed this to the Imperial system.

我应该把这个改成英制的。

The builders of the New China did not need his old tales, those remnants of the imperial and feudal system.

新中国的缔造者们不需要那些被视为封建制度残余的老故事。

You have the imperial system, the colonialist system, and the rest of the world uses metric system.

你有英制系统，殖民主义系统，世界其他地方使用公制系统。

My comprehension of the customs of the country was very limited I felt almost ashamed at how little I knew. I did not know if they used the metric or the imperial system of measurement.

我对这个国家的习俗的了解也非常有限。 我觉得惭愧得很，我知道得太少了。我不知道他们是用公制还是英制单位。