公开演讲一直是他最大的恐惧。

Public speaking has always been his biggest ___bugaboo.

奶奶常用妖怪的故事来吓唬不听话的小孩。

Grandma often uses the ___bugaboo story to scare naughty children.

迟到总是我们团队会议中的老大难问题。

Being late is always the main ___bugaboo in our team meetings.