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

.霍华德：话说，你终于要学普通话了我还真高兴。

谢耳朵：为嘛？

霍华德：等你说顺溜了，有十多亿中国人民等着你去烦，你就不用来烦我了。