My manager felt like a dolt after sending the meeting invite to the entire company.

經理把會議邀請寄給全公司後，覺得自己像個笨蛋。

The customer apologized for being such a dolt about the online refund form.

那位顧客為自己搞不懂線上退款表單而道歉，說自己真是個傻瓜。

I was a total dolt and booked my flight for the wrong month.

我真是個大笨蛋，竟然把機票訂錯月份。