这家公司被指控使用不道德的商业手段。

The company was accused of using ___unethical business methods.

那么，如果你想做一个实验，你不能做，因为那将是不道德的。

Then, if you would like to perform an experiment, you cannot, because that would be ___unethical.

这位政治家接受如此大额捐款被广泛谴责为不道德的行为。

The politician's acceptance of such large donations was widely condemned as ___unethical.