to feel extremely anxious or scared
非常に不安または恐れていると感じる (hijō ni fuan matawa osorete iru to kanjiru)
"My heart was in my mouth when the plane started shaking."
"飛行機が揺れ始めたとき、私の心臓は口の中にあった。" (Hikōki ga yurehajimeta toki, watashi no **shinzō wa kuchi no naka ni atta**.)
an achievement to be proud of
to travel or walk around aimlessly
to be in a stressful situation with a lot of demands
to be very expensive
to laugh very loudly or uncontrollably
to take a risk by supporting something or someone
