获取节目完整文本，请关注微信公众号：开言英语。更多精彩内容和福利等着你！
I know =我知道、我明白，不全是哦！用错场合，会给人非常傲慢、不耐烦的感觉。那什么时候能用I know, 什么时候不能用呢？赶快学起来！
A.J. Hanenburg, Graeme Donaldson, and Thomas Magbee
Shailen Jasani MA VetMB MRCVS DipACVECC
Rachel & Emma Dillon
Mayo Clinic
Greg Fitzsimmons
Caitlin Mitchell
Osmosis from Elsevier
Truck Talk Media
Jonathan Kotwicki
don't worry if you don't have an account with us, we'll create one
