常見例句用作形容詞 (adj.)Though it might not hit Taiwan directly, heavy and sporadic rainfall together with unstable temperature is predicted.雖然可能不會直接侵臺,但仍給臺灣帶來間歇性的大雨及不穩(wěn)定的天氣。The bar would naturally tend to fall down from the top vertical position, which is a position of unsteady equilibrium.棒子會有自然的趨勢從最高的竪直位置下落,那是一個不穩(wěn)定的平衡位置。 返回 top-heavy