8. Choose the card which you tike best, and fill in the following blanks with both your and your friends names and email addresses.
选一张你喜欢的贺卡,在下面的空白栏中,填入你和你朋友的名字和电邮地址。
youdao
9. A breakthrough was possible when Boyd found that when a dog moves, its head remains relatively still and so performs tike a gyro stabilised platform.
波伊德发现,当一只狗在运动时,它的头部相对稳定,与用陀螺仪固定的平台相仿,这时,突破就成为可能。
youdao
10. A breakthrough was possible when Boyd found that when a dog moves, its head remains relatively still and so performs tike a gyro stabilised platform.