The more I insisted, the more they started to suspect I was goofing on them.

我越坚持，他们就越怀疑我在耍他们。

Don't goof around on the steps. You might get hurt.

不可以在楼梯上捣蛋，你会受伤的。

It goofed on a grander scale in December 2021, when it reckoned that inflation in 2022 would be just 2.6% even though prices were already rising by more than 5% a year.

它在 2021 年 12 月犯了一个更大的错误，当时它估计 2022 年的通货膨胀率将仅为 2.6%，尽管物价已经以每年超过 5% 的速度上涨。