生的;I jumped up in fright.
我吓得跳了起来。
词
词I jumped up in fright.
我吓得跳了起来。
She was jumping up and down.
她上上下下地蹦着。
"The girls jump up and down together, cheering when the team has played well."
"球队表演出色时,
们一齐跳上跳下为他们加油。"
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