Your gong fu has a lot of good and bad points, but I'd like to draw particular attention to problems in your footwork.
你的功夫优点和缺点并存,但我希望你能特别要注意你的步法。
It caused devastation by burrowing and by devouring the herbage which might have maintained millions of sheep and cattle.
它们在地下打洞,吃掉本可以饲养数百万头牛羊的牧草,给澳洲大陆造成了毁灭性的破环。