pony 小矮马；小马驹，one-trick pony字面意思是“只会一招的小马驹”，真实含义是黔驴技穷；只有一技之长的人。

【例句】
Gordon is prone to cold streaks and can be a one-trick pony when his shot isn't falling.
戈登很容易手感冰凉，如果投篮不顺，他可能会黔驴技穷。

Everyone knows that you're only a one- trick pony.
每个人都知道你只会这一招.