to be so worried or upset that you don't know what to do
担心或烦恼到不知道该怎么办
"I'm at my wits' end trying to calm the kids down."
"我在尽力平静孩子们时已经精疲力尽。"
to sell shares of a company to the public for the first time
to ignore distractions or unpleasant thoughts
to speak or perform without preparation
alert, smart, and quick to react
to start being broadcast on television or radio
to share content on a social media platform
