Howard is teaching Sheldon Chinese*.
Howard: You know, I'm really glad you decided to learn Mandarin.
Sheldon: Why?
Howard: Once you're fluent, you'll have a billion more people to annoy instead of me.
霍華德:話說,你終于要學普通話了我還真高興。
謝耳朵:為嘛?
霍華德:等你說順溜了,有十多億中國人民等著你去煩,你就不用來煩我了。