Harry is an American business man. His job requires him to do a lot of travelling. He t...
Christina is on a two-week vacation. This is the first vacation she has had for a long ...
I'm coming
英语流利说懂你英语 Level4 Unit3 Part3 Listening-Honey Bee PollinationHoney bees play an interesting and important role in nature. In addition to making hone...