可能很難在MIT找到一個教室的黑板上沒有數學公式的。
It would probably be very hard to find a classroom in MIT in which there is no mathematical equations on the chalkboard.
可能很難在MIT找到一個教室的黑板上沒有數學公式的。
It would probably be very hard to find a classroom in MIT in which there is no mathematical equations on the chalkboard.