hiya-hiya
Feeling anxious and on edge about a danger that might happen — a cold, nervous chill in your chest.
💡Watching a child near traffic — 'I was hiya-hiya the whole time.'
子供が道路に飛び出しそうでひやひやした。
I was on edge hiya-hiya, afraid the child would run into the road.
I watched ___ as the toddler wobbled near the pool.
子供が道路に飛び出しそうで○○した。