空中英語教室 to go blank

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交換學生日記：迎接挑戰　Taking Up a Challenge

一項艱難的挑戰成了寶貴經驗

A big challenge becomes a valuable experience

空中英語教室Good TV 網路收看

Grammar gym

At first, I would just go blank because I was so nervous.

to go blank
mean: to become empty

example:
After working hard all day, Fred's mind goes blank.
It's easy to go blank when you have had to deal with so much stress.