head in the sand 把头埋进沙子里

ignoring the truth and fact 忽略了事实

something you don't want hearing,you can say put your head in the sand

take your head out of sand(weak up)

trump ministration band the TikTok for national security reason, come! don't put his head in the sand.

川普当局因为国家安全原因禁止了抖音，快醒醒吧别干蠢事额。