泰利·柯克帕特里克是阿肯色大学植物病理学的一名教授。他花了很多时间在这儿一个个的敲打西瓜，听西瓜发出的砰砰声。

Terry Kirkpatrick, a professor of plant pathology at the University of Arkansas, spends a lot of time here popping open watermelons.

youdao

如果你能听到脚步声，如果你的脚很用力地着地…如果你像我们在实验室说的发出砰砰的重击声，那么你正是在笨拙地跑步。

If you can hear your feet, if your feet are landing really hard... if you are thumping as we call it in my lab, then you're running poorly.

youdao