Nancy the CLOWN (Just like the rest of her kind) shows how incorrigible, corrupt, unscrupulous, unethical she is with the way she responded and even accused without evidence that Huaweis 5g tech came from Americans who don't even have the technology they're accusing Huawei of stealing. And then she essentially revealed as to what Americans and American technologies have been doing and are capable of doing which is are especially useful for ESPIONAGE, HACKING, and the subjugation of another countries sovereign laws, as well as political systems.Why do you assume Chinese officials, especially the foreign ministry can't debate in English? Just because they don't respond back in English because that would be beneath them and denigrate the Chinese language, doesn't mean they don't have a good grasp of debating in English.
For example, look at this takedown of Pelosi by Fu Ying at Munich Security Conference 2020.
She spoke like she has some kind of technical authority and knowledge on the subject matter when what she was doing and is really good at is for being a political hack with a very clear ideological blinders like a religious puritan back in the middle ages.